There are two unused areas, called Zone 3 and Zone 4, for the level Enter the Cheatrix that still exist in the game files. According to level designer Ben Johnson, these areas were largely designed as filler, and were cut because they made the level feel too long. Zone 3 mostly repeated gameplay ideas from earlier areas, while Zone 4 was planned to be a combat segment with infinitely spawning enemies, where players would have to fight them while figuring out how to shut down the spawners.