Continuity mistake: Episode 1: Night of the Mutants - In the sewer, Sketch has to defeat Stigril. After doing that he then climbs down the comic strip and lands in another part of the sewer, where there are two barrels set on fire. Destroy these and leap to the next part of the comic. Visible to the left hand side of the image, is a skeleton. As Sketch leaps over the next part of the comic, the skeleton vanishes from shot.