Contra (series)

Last updated

Contra
Contral (logo).png
The Contra logo as it appears on the title screen of the 1987 Contra arcade game
Genre(s) Run and gun
Developer(s) Konami
Publisher(s) Konami
Platform(s) Arcade, Commodore 64, Amstrad CPC, ZX Spectrum, IBM PC, Nintendo Entertainment System, MSX2, Amiga, Game Boy, Game Boy Color, Super Nintendo Entertainment System, Mega Drive/Genesis, Microsoft Windows, PlayStation, Sega Saturn, PlayStation 2, PlayStation Network, Game Boy Advance, Mobile, Xbox Live Arcade, Nintendo DS, Java 2 Platform, Micro Edition, WiiWare, Virtual Console, PlayStation 4, Xbox One, Nintendo Switch, PlayStation 5
First release Contra
February 20, 1987
Latest releaseContra: Operation Galuga
March 12, 2024
Spin-offs Probotector , Hard Corps , Contra Force , Contra ReBirth ,

Contra [lower-alpha 1] is a video game series produced by Konami composed primarily of run and gun-style shooting games. The series debuted in February 1987 with the Japanese coin-operated arcade game of the same name, which has since spawned several sequels produced for various platforms.

Contents

The arcade version of Contra was released a few months after the Iran–Contra affair was made public. While it is unclear whether the game was deliberately named after the Nicaraguan Contra rebels, the ending theme of the original game was titled " Sandinista " (サンディニスタ, Sandinisuta), after the adversaries of the real-life Contras. [1]

Gameplay

The majority of the Contra games are side-scrolling shoot-'em-ups where the player takes control of an armed commando who must fight all sorts of extraterrestrial monsters and other kinds of futuristic menaces. In addition to the side-scrolling stages, the original Contra (among others) also features "pseudo-3D perspective" levels where the player must move towards the background in order to progress, while subsequent titles, such as Super Contra and Contra III: The Alien Wars , feature overhead stages as well. [2] :40–41 Only the Appaloosa-developed installments in the series, Contra: Legacy of War and C: The Contra Adventure , as well as Neo Contra , deviated from the series' mainly side-scrolling perspective (although C: The Contra Adventure does feature two side-scrolling stages). Contra: Shattered Soldier , while maintaining the side-view perspective of the 2D games, features fully polygonal 3D graphics. Almost every game in the series, with only a few exceptions (such as the MSX2 version of Contra, C: The Contra Adventure or Operation C for the Game Boy, which were single-player only), allows two players to play the game simultaneously.

The main power-ups in the series are falcon-shaped letter icons which will replace the player's default weapon with a new one, such as a Laser Gun or a Spread Gun. There are also power-ups that are actually auxiliary items like the Barrier (which provides temporary invincibility) or the Rapid Bullets (which increases the firing speed of the player's current weapon) in the original Contra, as well as weapons such as the Mega Shell in the arcade version of Super Contra and the Bombs in Contra III and Contra: Hard Corps , that are used to destroy all on-screen enemies. The original arcade version of Contra used the falcon icons for all of its weapons except the Laser Gun and the Fire Ball weapon, while in the arcade version of Super Contra, no Falcon icons were used. Contra: Shattered Soldier and Neo Contra both deviate from this tradition by having set weapon configurations instead.

Most of the Contra games have the player begin the game with only a set number of lives (three in most console games). If the player gets hit once, they will lose a life along with any weapon they currently possess in some games. Because of this, the Contra series is notorious for being extremely difficult. Even in the original arcade versions, most of the games only give limited chances to continue before forcing the player to start all over. Extra lives are usually obtained in most games when the player reaches certain scores. The NES version of the original Contra used the Konami Code (previously featured in the NES version of Gradius ) to start the game with thirty lives instead of the usual three. Most of the subsequent console games in the series only featured these extra lives codes in their Japanese releases, such as Contra Spirits (the Japanese version of Contra III) and Contra: Hard Corps.

Games

Release timeline
1987 Contra
Super Contra
1988
1989
1990
1991 Operation C
1992 Contra III: The Alien Wars
Contra Force
1993
1994 Contra: Hard Corps
1995
1996 Contra: Legacy of War
1997
1998 C: The Contra Adventure
1999
2000
2001
2002 Contra: Shattered Soldier
2003
2004 Neo Contra
2005
2006
2007 Contra 4
2008
2009 Contra ReBirth
2010
2011 Hard Corps: Uprising
2012
2013
2014
2015
2016
2017
2018
2019 Contra: Rogue Corps
2020
2021
2022
2023
2024 Contra: Operation Galuga

Main games

Other games

Spin-offs exclusive to mobile gaming platforms among other mediums.

  • Contra: The War of the Worlds (mobile) (2009)
    A mobile game developed by Konami's Chinese division. In this game, the player fights alien intruders on the Moon.
  • Contra: Evolution (Arcade, Android, iPhone, iPad) (2010)
    A remake of the original Contra which was released in China on mobile phones (2010), [5] based on an arcade version that would actually be released later (2011) [6] and later ported to iOS systems in 2013. [7] It features updated graphics, new characters to choose from, pay-to-play credits to buy extra lives, and bonus stages.
  • Contra 3D (Pachislot)
    Contra 3D is a pachislot game based on the Contra series which was released in Japan in 2013.
  • Neo Contra (Slot Machine) (Pachislot)
    Neo Contra (Slot Machine) is a Slot Machine game based on Neo Contra which was released in North America in 2014.
  • Neo Contra: Warrior Reloaded (Pachislot)
    Neo Contra: Warrior Reloaded is another slot machine game based on Neo Contra , released in 2016. [8]
  • Neo Contra: Samurai Strike (Pachislot)
    Neo Contra: Samurai Strike is another slot machine game based on Neo Contra , released in 2016. [9]
  • Contra Returns (mobile)
    A free-to-play mobile game developed by Tencent and Konami which was originally exclusive to China in 2017. At the time of the Chinese release, it was nominated for "Best Sound Design in a Casual/Social Game" and "Best Music in a Casual/Social Game" at the 16th Annual Game Audio Network Guild Awards. [10]

Re-releases

The original arcade versions of Contra and Super Contra were ported to several computer platforms in North America and Europe during the late 1980s and 1990s. In North America, the original Contra and Super Contra (as Super C) were ported to DOS. A version of Super C was also released for the Amiga. Contra was released for DOS, [11] the Amstrad CPC, [12] the Commodore 64 [13] and the ZX Spectrum [14] in Europe under the Gryzor title.

As software emulation became more widespread, the games would be re-released in numerous formats on several platforms, most notable through the Wii's Virtual Console, the Xbox Live Arcade, and the PlayStation Network. [15]

Cancelled games

In other video games

In other media

Plot

Storyline and protagonists

Contra, and its initial sequels, are set in the 27th century, and center around two commandos named Bill Rizer (code name Mad Dog) and Lance Bean (code name Scorpion). They are members of a special guerrilla task force codenamed "Contra", who are sent to thwart armies of alien invaders seeking to destroy the Earth. After Contra III: The Alien Wars , the series would deviate from its original premise.

Contra: Hard Corps and its sequels ( Legacy of War and C The Contra Adventure ) take place after the events of Contra III, and followed several new characters; namely, recurring protagonist Ray Poward. Additionally, Hard Corps would feature human antagonists, rather than aliens. 2011's Hard Corps: Uprising is a prequel to Hard Corps, and is also set twenty years before the events of the original Contra. The game follows a character named "Bahamut", but in an interview with Siliconera, producer Kenji Yamamoto comments that Bahamut may or may not be the same character from the original Hard Corps. Yamamoto would also reveal the reason why the game doesn't use the Contra name in its title was due to how "different" fans regarded Hard Corps from the rest of the series. [20] Hard Corps and its follow ups have since been considered to be spin-offs from the main series. [2] :37

Bill would not return until 2002's Contra: Shattered Soldier ; where he became a convicted war criminal sent to fight against his former partner, Lance, who has become a terrorist leader. In the game's sequel, Neo Contra , a cryogenically frozen Bill is ultimately revealed to be a clone of the original Bill Rizer.

Contra 4 was intended to be a direct sequel to Contra III, ignoring the events of previous installments. However, "Mad Dog" and "Scorpion", originally the nicknames given to Bill and Lance in the NES versions of Contra and Super C, were made into separate characters. The game's main antagonist, "Black Viper", is also treated as a new character, despite originally appearing in the North American version of Operation C (which also refers to protagonist Lance as "Scorpion"). [21] [22] On the official timeline seen in the "History of Contra" e-book included with the Contra Anniversary Collection, the game is chronology set after the Japanese versions of Operation C and Contra III, but before the events of Hard Corps. [2] :37

Contra: Rogue Corps would return to the post-Contra III setting. The game features the return of Kaiser from the latter game, who joins a group of bounty hunters in a place called the "Damned City". [23]

Continuity differences

While the original Japanese version of the early Contra games (specifically Contra, Super Contra and Operation C) were set in the 27th century (in the years 2633, 2634, and 2635 in that order), the American versions of these games omitted this detail and the instruction manuals for these versions implied that the series was set during the present day. [24] Contra III: The Alien Wars retains its futuristic setting of 2636 for its American release, but the identities of the two player characters, Bill Rizer and Lance Bean (the heroes from the previous installments), were changed to their descendants "Jimbo" and "Sully" in order to retain the continuity of the previous localizations. [25]

The enemy characters of the earlier games were also named differently in the American versions. In particular, "Red Falcon", originally the name of the terrorist army that was fought by the main characters in the first game (the Red Falcon Organization), became the name of the actual alien entity leader; thus, "Red Falcon" became the name of the final boss fought at the end of Contra, where the player fights both his alien body form and his heart. [24] In Japan, these are intended to be two different entities: Emperor Demon Dragon God Java and Emperor Demon Evil Heart Gomera Mosking, respectively. [26] [27]

The final boss of Super Contra (or the third to last boss in the NES Super C) and Contra III; is named Emperor Demon Gyaba in the original Japanese versions. Often mistaken as Red Falcon, his American name is referred to as Jagger Froid in the Super C instruction manual. [28] The American Super C instruction manual also illustrates a common "running" alien enemy from its final stage as Red Falcon. [28] The alien entity leader known as Red Falcon does not appear as an enemy in the Super Contra or Super C games.

In the Japanese version of Operation C, the antagonist was originally a nameless hostile nation seeking to develop alien-based weapons. This was changed in the North American version to "Black Viper", another alien invader. [21]

With the release of the American and European versions of Contra: Shattered Soldier , all international Contra releases began to follow the Japanese continuity.

Alternate continuities

Contra Force is a standalone entry that, due to it being originally intended to be separate game altogether, is considered to be non-canon from the rest of the franchise. [29] [30] [31] [32]

Contra ReBirth begins in 2633, but the game's plot primarily takes place in 1973 and incorporates elements of time travel. It has since been considered non-canon, instead taking place in an alternate timeline during a period dubbed "the KONTRA era". [2] :37

Contra: Operation Galuga is a reimagining of the original game and a reboot of the series set in 26XX as opposed to the original taking place in 2633. Bill Rizer and Lance Bean also once again return as the main protagonists.

Probotector

When Konami released the NES version of the original Contra in the PAL region (Europe and Australia) they modified the game by replacing the original main characters and most of the human enemies with robotic counterparts, retitling the game Probotector (a portmanteau of "Robot" and "Protector"). The title referred to the two robotic soldiers, RD-008 and RC-011, who replaced Bill and Lance in this version. This was presumably done due to the German Federal Agency BPjM, which prohibited the sale and advertisement of media deemed too violent to children, including "content which glorifies war".

While the original arcade games, as well as a few computer conversions under the Gryzor title, were released unchanged in Europe, subsequent console installments of the Contra series were released under the Probotector title in Europe. The original Probotector was followed by Probotector II: Return of the Evil Forces for the NES (originally Super Contra or Super C) and Super Probotector: Alien Rebels for the SNES ( Contra III: The Alien Wars ). The Contra games for the Game Boy ( Operation C and the Game Boy version of Alien Wars) and Mega Drive ( Contra: Hard Corps ) were also released as Probotector titles in Europe. The series would revert to the Contra title in Europe beginning with Contra: Legacy of War for the PlayStation, retaining the human characters. However, Probotector II and Super Probotector were still released for the Wii Virtual Console in Europe and Australia like their original releases, with no "uncensored" versions available. Although Contra 4 was not released in Europe, the "Probotector" character appears in the game as a hidden character.

Reception

By the end of 1996, the Contra series had accumulated combined sales of over 4 million units worldwide. [33]

Notes

  1. In Japanese: 魂斗羅 (Kontora)

Related Research Articles

<i>Gradius</i> (video game) Sidescrolling shooter video game by Konami

Gradius is a side-scrolling shooter video game developed and published by Konami. The first game in the Gradius series, it was originally released as a coin-operated arcade game in 1985. The player maneuvers a spacecraft known as the Vic Viper that must defend itself from the various alien enemies. The game uses a power-up system called the "power meter", based upon collecting capsules to purchase additional weapons.

<i>Contra</i> (video game) 1987 video game

Contra is a run and gun video game developed and published by Konami, originally developed as a coin-operated arcade video game in 1986 and released on February 20, 1987. A home version was released for the Nintendo Entertainment System in 1988, along with ports for various home computer formats, including the MSX2. The arcade and computer versions were localized as Gryzor in Europe, and the NES version as Probotector in PAL regions and France.

<i>Salamander</i> (video game) 1986 video game

Salamander, retitled Life Force in North America and in the Japanese arcade re-release, is a scrolling shooter arcade video game developed and published by Konami. Released in 1986 as a spin-off of Gradius, Salamander introduced a simplified power-up system, two-player cooperative gameplay and both horizontally and vertically scrolling stages. Some of these later became normal for future Gradius games. In Japanese, the title is written using ateji, which are kanji used for spelling foreign words that has been supplanted in everyday use by katakana. Contra, another game by Konami was also given this treatment, with its title written in Japanese as 魂斗羅.

<i>Gunstar Heroes</i> 1993 video game

Gunstar Heroes is a run and gun video game developed by Treasure and published by Sega. It was Treasure's debut game, originally released for the Sega Genesis in 1993. The game's premise is centered around a pair of characters, the Gunstars, in their efforts to stop an evil empire from recovering four powerful gems. The characters can fire guns and perform a series of acrobatic maneuvers to fight enemies across each stage. There are four weapons in the game which can be combined with one another to create different shot types.

<i>Castlevania III: Draculas Curse</i> 1989 video game

Castlevania III: Dracula's Curse is a 1989 platform game developed and published by Konami for the Nintendo Entertainment System. It was released in Japan in 1989, and in North America in 1990, and in Europe by Palcom in 1992. It was later released on the Virtual Console for the Wii, Nintendo 3DS, and Wii U.

<i>Contra Force</i> 1992 video game

Contra Force is an run and gun game released by Konami for the Nintendo Entertainment System in 1992 in North America. It is a spinoff of the Contra series, being the third game in the series released for the NES following the original Contra and Super Contra. However, the game's plot and setting are unrelated to both previous and succeeding entries, as the villains in the game are human terrorists instead of an alien menace. The game was scheduled to be released in Japan under the title of Arc Hound, with no ties to the Contra series, but was cancelled.

<i>Teenage Mutant Ninja Turtles III: The Manhattan Project</i> 1991 video game

Teenage Mutant Ninja Turtles III: The Manhattan Project is a side-scrolling beat-'em-up released by Konami for the Family Computer (Famicom) in Japan in 1991 and for the Nintendo Entertainment System in North America in 1992. It is the third video game iteration of the Teenage Mutant Ninja Turtles for the NES. The game features play mechanics similar to the previous game, Teenage Mutant Ninja Turtles II: The Arcade Game, but it is an original title for the NES without any preceding arcade version. It is based on the 1987 Teenage Mutant Ninja Turtles animated series, being released after the show's 5th season. The game was re-released as part of Teenage Mutant Ninja Turtles: The Cowabunga Collection in 2022.

<i>Operation C</i> (video game) 1991 video game

Operation C is a 1991 run and gun video game by Konami released for the Game Boy. It is a sequel to Super Contra, and the first portable installment in the Contra series. Operation C features gameplay and graphics similar to the Nintendo Entertainment System versions of Contra and Super Contra.

<i>Contra: Hard Corps</i> 1994 video game

Contra: Hard Corps, released as Contra: The Hard Corps in Japan and Probotector in Europe and Australia, is a run and gun video game released by Konami for the Sega Genesis in 1994, making it the first game in the Contra series released for a Sega platform.

<i>Contra: Legacy of War</i> 1996 video game

Contra: Legacy of War is a 3D action game produced by Konami and developed by Appaloosa Interactive that was originally released in 1996 for the PlayStation and Sega Saturn. It is a follow-up to Contra: Hard Corps, and was the first of two games in the Contra series that were externally developed by Appaloosa; the second game, C: The Contra Adventure, was released in 1998. Legacy of War marks the series' shift to three-dimensional graphics and gameplay, the game was released packaged with a pair of 3D anaglyph glasses, which enables the player to view the 3D effects incorporated into the game's graphics. Legacy of War bears the distinction for being the first console game in the series to retain both the Contra title and human characters during its release in Europe and Australia. The game was scheduled to be released in Japan as well, but was cancelled.

<i>Contra: Shattered Soldier</i> 2002 video game

Contra: Shattered Soldier, originally released in Japan as Shin Contra, is a video game that is part of the Contra series by Konami. It was developed by Team Kijirushi, a group of staff members within Konami Computer Entertainment Tokyo. The game marks a return to the two-dimensional gameplay style employed by the series prior to Contra: Legacy of War. A sequel to Contra: Hard Corps, the game was released for the PlayStation 2 in 2002 and for the PlayStation Network in both 2012 for Japan and 2013 for North America.

<i>Neo Contra</i> 2004 video game

Neo Contra is the tenth video game in the Contra series published by Konami. It was developed by Team Neo Kijirushi, a group of staff members within Konami Computer Entertainment Tokyo, and released for the PlayStation 2 in 2004. The game is a direct follow-up to Contra: Shattered Soldier, but returns to the multidirectional shooting format and departs from the traditional scrolling shooter formula used in previous games. It was the first game in the series to receive an M (Mature) rating from the ESRB and was the only installment to receive this rating until the release of Rogue Corps in 2019.

Gradius is a series of shooter video games, introduced in 1985, developed and published by Konami for a variety of portable, console and arcade platforms. In many games in the series, the player controls a ship known as the Vic Viper.

<i>Contra 4</i> 2007 video game

Contra 4 is a 2D action game published by Konami Digital Entertainment in the United States and developed by WayForward Technologies. It is the eleventh overall installment of the Contra series, and was released in North America on November 13, 2007 for Nintendo DS. A mobile port was released six days later on November 19, 2007. A rerelease, called Contra 4: Redux, was released for Android in 2011.

<i>Contra ReBirth</i> 2009 video game

Contra ReBirth is a 2D run and gun video game developed by M2 and published by Konami for WiiWare. It is the twelfth original installment in the Contra series. It was released in Japan on May 12, 2009, the PAL region on September 4, 2009, and North America on September 7, 2009.

<i>Hard Corps: Uprising</i> 2011 video game

Hard Corps: Uprising is a run and gun video game developed by Arc System Works and published by Konami for the Xbox 360 and the PlayStation 3. The game was released digitally on Xbox Live Arcade on February 16, 2011 and on the PlayStation Network in March 2011. In Hard Corps: Uprising, the player assumes the role of an elite soldier simply called Bahamut, along with other main characters. Konami has added three additional player characters via downloadable content.

<i>Super Contra</i> 1988 video game

Super Contra, known as Super Contra: The Alien Strikes Back in Japan, is a run and gun video game by Konami, originally released as a coin-operated arcade video game in January 1988. It is the sequel to the original Contra and part of the Contra series. The game stars Bill Rizer and Lance Bean as they are sent to thwart another alien invasion from the vicious Red Falcon.

<i>Contra III: The Alien Wars</i> 1992 video game

Contra III: The Alien Wars is a 1992 run and gun video game developed and published by Konami for the Super Nintendo Entertainment System (SNES). It is the third home console entry in the Contra series after Contra (1988) and Super C (1990) for the Nintendo Entertainment System (NES). In PAL regions, it was retitled Super Probotector: Alien Rebels and the player characters were replaced with robots. The player is tasked with fighting off an alien invasion of Earth across six stages. Four stages feature side-scrolling action traditional to the series while two are presented from an overhead perspective. It is the first Contra title to have been directed by Nobuya Nakazato who later directed other games in the series. He designed Contra III to feature more comical elements, a more cinematic soundtrack, and tighter stage design than its predecessors.

<i>Gradius III</i> 1989 video game

Gradius III is a 1989 scrolling shooter video game developed and published by Konami, originally released for the arcades in Japan and other parts of Asia on December 11, 1989. It is the third game in the Gradius series. The game was ported to the Super Nintendo Entertainment System in Japan in 1990 and North America in 1991, and served as a launch title for the system in North America. The arcade version would never see the light of day in the West until it was included alongside Gradius IV in a two-in-one compilation for the PlayStation 2 and in the Gradius Collection for the PlayStation Portable.

<i>Contra: Rogue Corps</i> 2019 video game

Contra: Rogue Corps is a run and gun twin-stick shooter in the Contra series developed by Toylogic and published by Konami. It was released on September 24, 2019 for the Nintendo Switch, PlayStation 4, Windows, and Xbox One.

References

  1. A-JAX~コナミ・ゲーム・ミュージック VOL.4 A-Jax: Konami Game Music Vol. 4 (Booklet). G.M.O. Records / Alfa Records. 28XA-201.
  2. 1 2 3 4 5 Tatsuya Saijyou; Yasufumi Sakuma (June 11, 2019). Noboru Honda; Takeshi Matsumoto; Daisuke Yoshihara; Daisuke Kihara (eds.). The History of Contra (E-book). Konami.
  3. James Charlton (May 9, 2009). "Konami Announces Contra Rebirth for WiiWare". Nintendo World Report. Retrieved May 11, 2009.
  4. Hatfield, Daemon (May 12, 2009). "Contra ReBirth Impressions". IGN . Retrieved May 13, 2009.
  5. "China's getting a Contra remake - Contra Database". www.klustr.net. Archived from the original on February 18, 2014. Retrieved April 30, 2016.
  6. "Contra: Evolution Revolution arcade video game by Konami Digital Ent. Co., Ltd.(2011)". www.arcade-history.com. Retrieved April 30, 2016.
  7. "Contra: Evolution Revolution blasts onto the Chinese App Store". Pocket Gamer. January 22, 2013. Retrieved April 30, 2016.
  8. "Neo Contra: Warrior Reloaded".
  9. "Neo Contra: Samurai Strike".
  10. "2018 Awards". Game Audio Network Guild. Retrieved April 14, 2018.
  11. "CONTRA > CONVERSIONS > DOS". Contra Encyclopedia. June 30, 2014. Retrieved April 30, 2016.
  12. "CONTRA > CONVERSIONS > CPC". Contra Encyclopedia. June 30, 2014. Retrieved April 30, 2016.
  13. "Contra (1988) Commodore 64 box cover art - MobyGames". MobyGames. Retrieved April 30, 2016.
  14. "CONTRA > CONVERSIONS > SPECTRUM". Contra Encyclopedia. June 30, 2014. Retrieved April 30, 2016.
  15. Stevens, Colin (May 28, 2019). "Konami Announces Contra Anniversary Collection Lineup". IGN.
  16. "In Development". Next Generation . No. 29. Imagine Media. May 1997. p. 54.
  17. IGN staff (January 29, 1999). "Contra Canned". IGN.com. Retrieved December 24, 2008.
  18. "Contra announced for GameCube".
  19. Romano, Sal (April 10, 2024). "Vampire Survivors coming to PS5 and PS4 this summer, DLC 'Operation Guns feat. Contra' announced". Gematsu. Retrieved May 12, 2024.
  20. Daemon Hatfield (June 3, 2010). "E3 2010: (Contra) Hard Corps Preview - PlayStation 3 Preview at IGN". Ps3.ign.com. Retrieved December 31, 2010.
  21. 1 2 Operation C - Nintendo Game Boy - Manual - gamesdatabase.org (PDF), archived from the original (PDF) on April 10, 2022, retrieved April 10, 2022
  22. KONAMI ANNOUNCES CONTRA 4 FOR NINTENDO DS™ (PDF), June 20, 2007, archived from the original (PDF) on April 10, 2022, retrieved April 10, 2022
  23. Romano, Sal (June 11, 2019). "Contra: Rogue Corps announced for PS4, Xbox One, Switch, and PC". Gematsu. Retrieved June 12, 2019.
  24. 1 2 "How To Play Contra (NES Manual)" (PDF). Games Database. Retrieved October 26, 2014.
  25. "Contra III The Alien Wars/Super Probotector: Alien Rebels" (PDF). Nintendo . Retrieved April 1, 2022.
  26. "The recurring bosses of Contra - Part 6". Contra Database. Retrieved October 26, 2014.
  27. "The recurring bosses of Contra - Part 7". Contra Database. Retrieved October 26, 2014.
  28. 1 2 "Super C Manual" (PDF). florre.se. Retrieved October 26, 2014.
  29. Konami. Crisis Force (Family Computer) (in Japanese). Level/area: Pamphlet included with the game.
  30. "Arc Hound preview". Famicom Tsūshin (in Japanese). June 28, 1991. Archived from the original on December 11, 2017. Retrieved April 11, 2022.
  31. "Pak Watch: From Konami/Ultra". Nintendo Power. Vol. 26. July 1991. p. 95. As for sequels, look for Contra Force (aka Contra 3) and Teenage Mutant Ninja Turtles 3 sometime this winter
  32. Nintendo Player's Guide: Super NES. 1992. p. 152. Archived from the original on June 13, 2007. Retrieved August 13, 2007.
  33. "Contra Legacy of War: The Classics Come to 32-Bits". Electronic Gaming Monthly . No. 87. Ziff Davis. October 1996. p. 142.