- Touch anywhere in the screen to move your block(yellow/green) - Avoid red blocks - Crash blue blocks to add scores Navigate your happy yellow blockhead to avoid the mean red blockheads, and eat the little blue blockheads, but be careful or you're the biggest blockhead of them all. Gobble up the little guys, and you will begin to grow. Enable the sounds to hear your blockhead munch his way to grandiose stature. Use your finger on the touch screen to move your yellow block among the varying speeds of the other blocks. Be quick, but don't hurry and you'll be the master Blockoon.