Levels are cubes of arrows. Tap an arrow and it flies off in the direction it points, but only if its straight path is clear. A blocked tap costs one of three lives and the blocker flashes. Turn the cube to find the chain, then empty it. 1000 levels from Easy to Expert (cubes grow from 4x4x4 to 10x10x10), Random Dense for a fresh 8x8x8 cube each time, and a Daily 3D Cube that is the same for everyone. Free to play on iPhone and Android, with ads and nothing to buy.