The gameplay system is similar to the Metroid series of games. The player takes control of a spacewoman in a biohazard suit, Player 1 is Kissy and Player 2 is Takky. They must clear eight worlds of increasing difficulty (each one is composed of five regular floors and one boss floor) by using their wave guns to destroy all the enemies populating them. They must also save the one-eyed Paccets for extra points and the chance to earn another shield in the end-of-floor bonus games.