A regular pin flies off when you tap it.

A movable pin jumps to a different location when tapped. The new position is marked by grooves of the same color as the pin itself.

A rotating drum with pins changes its direction of rotation when tapped.

Magnetic pin moves away when tapped, then returns to its original position on its own. To keep this pin im the open position, tap it and hold it.

The switch pin moves to a new position, open or closed, on the first tap, and returns to its original position on the second tap.

Rail-moving pin: To activate this pin, tap and hold it while moving it back and forth along the rail. The rail is marked in a bright color.

Fan is an additional element in puzzle levels. Tap on it to activate a wind stream that moves objects in the puzzle. Tap it again to turn the fan off.