Nemesis(ネメシスNemeshisu?) is the first portable game in the Gradius series, released for the Game Boy in 1990. This is not the same game as Nemesis of Europe and Japan on the MSX. The game has five stages and plays similarly to previous Gradius games. It was Released in North America and Japan.
This game allows the player to select the stage and the number of available extra lives from the very start.
This is also the only game in the series to use the European name of the Gradius series, Nemesis, internationally.