In Ghost Valley 2. If you jump far enough from the lap line (easier using a turbo item got 5 seconds earlier, but I guess it's also possible using the boost just before) you can actually "skip" the linedef's lap detector and continue one lap late. This is a hell in Time Attack.
Casino resort has had screwed up moving textures since after the first release. I didn't mention it since I figured somebody already reported it but since it wasn't fixed I guess they didn't. It's really easy to see in the first room with the slot machines.