Two Sets of Rules is the 16th level in Chip's Challenge Level Pack 3. It was created by Mike Lask and was originally named MS or Lynx since it highlights the differences between the MS and Lynx rulesets, such as cross-checking, tanks running into acting walls, block slapping, different monster orders, the Controller and Boss Glitch and monster behavior towards specific tiles such as blue keys, the hint and random force floors. 254 requires odd step in MS.