The term unlockable games refers to full video games that can be unlocked within another video game, often as easter eggs.Often these unlockable games are earlier entries in the series of the game in which they are hidden, and they become available after beating the game or meeting other requirements.
The Konami Code, also commonly referred to as the Contra Code and sometimes the 30 Lives code, is a cheat code that appears in many Konami video games, and some non-Konami games. In the original code, the player can press the following sequence of buttons on the game controller to enable a cheat or other effects:
Ninja Gaiden is a series of action video games by Tecmo featuring the ninja Ryu Hayabusa as its protagonist. The series was originally known as Ninja Ryukenden in Japan. The word "gaiden" in the North American Ninja Gaiden title means “side story” in Japanese. The original arcade version, first two Nintendo Entertainment System games and Game Boy game were released as Shadow Warriors in PAL regions. As of 2008, the series has shipped over 7.7 million copies.
In video game parlance, a multicart is a cartridge that contains more than one game. Typically, the separate games are available individually for purchase or were previously available individually. For this reason, collections, anthologies, and compilations are considered multicarts. The desirability of the multicart to consumers is that it provides better value, greater convenience, and more portability than the separate games would provide. The advantage to developers is that it allows two or more smaller games to be sold together for the price of one larger game, and provides an opportunity to repackage and sell older games one more time, often with little or no changes.
Teenage Mutant Ninja Turtles: Turtles in Time, released as Teenage Mutant Hero Turtles: Turtles in Time in Europe, is an arcade video game produced by Konami. A sequel to the original Teenage Mutant Ninja Turtles arcade game, it is a scrolling beat 'em up type game based mainly on the 1987 TMNT animated series. Originally an arcade game, Turtles in Time was ported to the Super Nintendo Entertainment System in 1992 under the title Teenage Mutant Ninja Turtles IV: Turtles in Time, continuing the numbering from the earlier Turtles games released on the original NES. That same year, a game that borrowed many elements, Teenage Mutant Ninja Turtles: The Hyperstone Heist, was released for the Mega Drive/Genesis.
PlayChoice-10 is an arcade machine that can consist of as many as 10 different games previously available only on the Nintendo Entertainment System (NES) home console. The games for this system are in the modular form of circuit boards that are plugged into one of the ten open slots on the PlayChoice-10's motherboard.
Teenage Mutant Ninja Turtles III: The Manhattan Project is a side-scrolling beat-'em-up released by Konami for the Nintendo Entertainment System 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.
Team Ninja is a Japanese video game developer, book publisher, and a division of Koei Tecmo, founded in 1995 as a part of Tecmo. It was formerly led by Tomonobu Itagaki, later by Yosuke Hayashi, and is best known for the Ninja Gaiden action-adventure game series and the Dead or Alive fighting game series.
The Nintendo Player’s Guides are a series of video game strategy guides from Nintendo based on Nintendo Power magazine.
Xbox Live Arcade (XBLA) is a digital video game download service available through the Xbox Games Store, Microsoft's digital distribution network for the Xbox 360. It focuses on smaller downloadable games from both major publishers and independent game developers. Titles range from classic console and arcade video games, to new games designed from the ground up for the service. Games available through the XBLA service range from $5–20 in price, and as of October 2016, there have been 719 Xbox Live Arcade titles released for the Xbox 360. Prior to the Xbox 360, "Xbox Live Arcade" was the name for an online distribution network on the original Xbox, which was replaced by the Xbox Live Marketplace.
Teenage Mutant Ninja Turtles III: Radical Rescue, released as Teenage Mutant Hero Turtles III: Radical Rescue in Europe, and Teenage Mutant Ninja Turtles 3: Turtles Kiki Ippatsu in Japan, is a Game Boy game by Konami, released in November 1993. It is the third Game Boy game based on the Teenage Mutant Ninja Turtles, following Teenage Mutant Ninja Turtles: Fall of the Foot Clan and Teenage Mutant Ninja Turtles II: Back from the Sewers.
Ninja Gaiden, released in Japan as Ninja Ryūkenden and as Shadow Warriors in Europe, is a platform game. Tecmo developed and published it for the Nintendo Entertainment System (NES). Its development and release coincided with the beat 'em up arcade version of the same name. It was released in December 1988 in Japan, in March 1989 in North America, and in August 1991 in Europe. It has been ported to several other platforms, including the PC Engine, the Super NES, and mobile phones.
TMNT is an action-adventure video game featuring the Teenage Mutant Ninja Turtles. It was developed by Ubisoft Montreal and published by Ubisoft for Xbox 360, Wii, PlayStation 2, GameCube, Nintendo DS, and PlayStation Portable, as well as for Microsoft Windows on March 20, 2007. It is based on the 2007 film of the same name. An Xbox and PlayStation 3 versions of the game were also planned but cancelled.
Teenage Mutant Ninja Turtles: Smash-Up is a 2.5D fighting game for the Wii and PlayStation 2 video game consoles featuring characters from the Teenage Mutant Ninja Turtles franchise. It was developed by Game Arts in cooperation with Mirage Studios, and features similar gameplay to the Super Smash Bros. series. The game was released by Ubisoft in September 2009 in celebration of the TMNT franchise's 25th anniversary. Upon release, the game received mixed critical reception.
Teenage Mutant Ninja Turtles: Turtles in Time Re-Shelled is an enhanced remake of the 1991 arcade game, Teenage Mutant Ninja Turtles: Turtles in Time, which itself is a sequel to the original Teenage Mutant Ninja Turtles arcade game. Both of the original arcade games were produced by Konami. It is a side scrolling beat 'em up, mostly based on the 1987 animated series, the Teenage Mutant Ninja Turtles Adventures and the second movie.
Teenage Mutant Ninja Turtles: Danger of the Ooze is a 2.5D platform video game developed by WayForward Technologies and published by Activision. It is the second video game based on the 2012 Teenage Mutant Ninja Turtles TV series and features elements from the show's second and third seasons. It was released as a sequel to the 2013 game Teenage Mutant Ninja Turtles. The game also features gameplay elements and homages to the 1989 Teenage Mutant Ninja Turtles NES game. The digital versions of the game, alongside other Teenage Mutant Ninja Turtles games published by Activision, were pulled from all digital storefronts in January 2017 when the rights expired and they chose not to renew the license.
Teenage Mutant Ninja Turtles is a 1989 arcade game released by Konami and based on the first Teenage Mutant Ninja Turtles animated series that began airing two years earlier. In the game, up to four players control the titular Ninja Turtles, fighting through various levels to defeat the turtles' enemies, including the Shredder, Krang and the Foot Clan. Released during a high point in popularity for the Ninja Turtles franchise, the arcade game was well received and versions for various home systems soon followed, including the Nintendo Entertainment System. A sequel, Teenage Mutant Ninja Turtles: Turtles in Time, was released in 1991.