Drag to move. Corner resizing keeps proportions. Hold a piece for its menu.

Two fingers move and rotate a piece. Pinch horizontally to stretch width, vertically for height, or diagonally to scale both. On empty canvas they move, rotate and zoom the view. Fit straightens the view.

V select · H pan · B block · M Max
F fit · ⌘Z undo · ⌘D duplicate
Enter play · arrows move · Up jump
Shift run · K dodge · Esc edit
Drag to steer · swipe up to jump
Flick sideways to dodge · two-finger tap to edit