Mathman's nemesis was Mr. Glitch, a cranky tornado who was always described with a different negative adjective. He was a parody of the multi-colored Ghost enemies of "Pac-Man" and would appear whenever Mathman had to make a decision. If Mathman ate an incorrect number or polygon, answered a question incorrectly, or used up too much time, Mr. Glitch would "power up" (with lightning bolts and thunder crashing), chase after Mathman, and then eat him. He won this right the majority of the times the game was played, only being defeated a handful of times.