The general idea behind the design of these levels was to make them all fair but with a scaling amount of difficulty. Each stage starts off quite easy, letting the player get accustomed to the controls and the mechanics since the first stage, only introducing proper hazards from the second one and finally putting their knowledge of the game in the last one. The latter also presents some checkpoints, placed after particularly tough sections, so that if the player were to die they wouldn't have to restart the level from the beginning.