Squiggles, terrazzo and gravity. Build it tall. Don't let it fall.
ARROWS / WASD move the crane. UP / W rotates. DOWN / S or SPACE drops. X swaps your held piece (once per drop).
Stack pieces to the zig-zag line and keep it steady for 3 seconds. Lose 4 pieces and it is over. M = mute.
PRESS ENTER