01 / DROPTiming is everything.
Click the board, tap Drop, or press Space to release the moving can.
02 / BALANCEKeep it upright.
If any can tilts too far, the tower is done. Build carefully.
03 / WINReach the green line.
Build upward past the line and hold steady for one second to win. Layers count height, not the number of cans dropped.