Swipe on the board, or use the arrows, to tip the block over. It rolls end over end, so it is sometimes standing up and sometimes lying down.
Get the block standing up on the dark hole to finish the level.
Don't let any part of it hang over the edge. If it falls, it pops back to where it was.
Orange tiles are fragile: they hold the block lying down, but not standing up.
Round switches work when any part of the block touches them. ✕ switches only work when the block stands on them. Each one opens or closes the matching bridge.
Crumbly tiles fall away as soon as the block leaves them, so plan a way that doesn't need them twice.
Ice: when the whole block is on ice it slides on in the same direction until part of it has grip again (or it slides off the edge).
Purple pads come in pairs: stand the block up on one and it jumps to the other.
Each level has a par: the fewest moves it can be done in. Match it for three stars.
Undo takes back a move. Hint shows the best next move, but the level then gives at most two stars.
Endless climb: board after board, each a little harder, the same boards for everyone. Each board has a move limit; run out and you lose a heart and start that board again. Undo and Restart move the block back but don't give moves back, and there are no hints. Lose all three hearts and the climb is over. Every 5 boards cleared wins a heart back.