◀▶ to move piece
Tap to rotate
Swipe ▼ to soft drop
Fast swipe ▼ to hard drop
🛸 UFO — stack 2 I-pieces tall
◀▶ to move, Tap to shoot
⚡ Force Fields — enclose 4+ spaces
▲▼ to move, Don't let it escape
👾 Invader — lose a life to activate
◀▶▲▼ to move, Clear blocks