Drop starts a slow fall. Keep moving and rotating as it falls. Drop again to slam it.
Mouse: aim, click to drop or slam, right-click or wheel to rotate.
Keys: ← → move, ↑ rotate, Space drop or slam, hold ↓ to speed up.
Touch: drag on the board to move, tap to rotate, flick down to drop, flick again to slam. Hold ◀ ▶ to keep moving.