is a 1990 shoot 'em up

video game Video games, also known as computer games, are electronic games that involves interaction with a user interface or input device such as a joystick, controller, keyboard, or motion sensing device to generate visual feedback. This fee ...

developed and published by

Konami , is a Japanese Multinational corporation, multinational video game company, video game and entertainment company headquartered in Chūō, Tokyo, Chūō, Tokyo, it also produces and distributes trading cards, anime, tokusatsu, pachinko machin ...

for the

Game Boy The is an 8-bit fourth generation handheld game console developed and manufactured by Nintendo. It was first released in Japan on April 21, 1989, in North America later the same year, and in Europe in late 1990. It was designed by the same ...

. It is part of the Gradius series. Similar to Taito's ''

Sagaia is a 1989 arcade video game developed by Taito. It is the direct sequel to the 1987 '' Darius''. It was later released as in Japan in 1991 for the Game Boy as well as non-Japanese ports. A remake was released for the PC Engine Super CD-ROM² as ...

'', this game uses a once-international title for an earlier game in the series to represent a mostly original project. A sequel, '' Nemesis II'', was released for the same platform in 1991. Both games were later rereleased through the ''

Konami GB Collection ''Konami GB Collection'' is a series of video game compilations composed of four volumes released in Japan for the Game Boy and re-released in Euro regions for the Game Boy Color. The compilations were originally released from 1997 to 1998 in Japan ...

'' series, where they are titled ''Gradius'' and ''Gradius II'' instead.

Gameplay

''Nemesis'' retains the basic power-up meter commonly used in most Gradius games, but with the addition of multi-level missiles not present in the original ''Gradius''. The game consists of only five stages, each with a unique core boss. Although it is also possible to access hidden bonus stages in which the player may collect 1-ups and score bonus cells. Like other Game Boy titles developed by Konami, the game presents the player with a stage selection screen before starting. 1990 video games Game Boy games Game Boy-only games Gradius video games Video games developed in Japan Video games scored by Michiru Yamane Horizontally scrolling shooters {{konami-stub ja:ネメシス (ゲーム)#ネメシス