The notes follow a musical scale on each level.The instruments give powers that help you reach the end of the stage.Watch out for the alien!Help Giba complete the levels before ending his oxygen supply.If you want to learn how this game was made and all his mechanics you can buy the template here:https://www.scirra.com/store/royalty-free-game-templates/scale-space-trip-template-4587 Arrows or WASD To move Space JumpSpace (2x) Double jump!Z X C Power ups!