Click the green flag twice! And if the cube just keeps jumping, click on it! This is like a mix between Geometry Dash and The Impossible Game, sort of. Just use the arrow keys, click the mouse, or press space to jump and don't crash into the sides of blocks. it's that simple. :)
Sorry if you come across impossible combinations! (Although they're pretty rare.) The music is called -Clutterfunk- from Newgrounds by WaterFlame. Shared on my birthday. :D