When he regains consciousness, Olimar finds out that the planet's atmosphere contains high levels of poisonous oxygen and he can stay on the planet for only thirty days before his life support system stops functioning. Olimar must retrieve all 30 of his lost spaceship parts so he can rebuild his spaceship and return to Hocotate. Although Olimar initially states in his journal entries that he needs all thirty parts, as the game progresses, it is hinted that some parts might not be needed to actually lift off and, indeed, one can successfully complete the game with only 25 parts rather than all 30.