Avoid the flying coloured blocks by using the up and down arrow keys. Get coins to add to your points, which will be revealed at the end of the game. Get hearts to increase the nuber of lives. Get pyramid-shaped objects to shrink or turn invincible for a few seconds. Unfortunately, this project can be very slow on some computers.
MY HIGHSCORE IS 696. (At that point it's pretty much impossible to dodge the blocks; I just survive on previously collected hearts and powerups.)