Mechanics

Level 1 - Button Buttons are things that MUST be pressed in order to continue. They appear in almost every level.

Level 2 - Fake Wall Fake Walls can be passed through, as their CanCollide box is not checked. They appear in levels 2, 3, 5, 6, 9, 10, 11, 15, 16, 17, 18, and 19.

Level 3 - Fog Button Fog Buttons are like buttons, but they create fog when pressed. They appear in levels 3 and 7.

Level 11 - Code Pad Code Pads are like buttons, but instead of a button they require a code to be entered. They appear in levels 11 and 30-A.