I found out if you jump on an enemy whilst going through the door it skips a level. I used this to skip level 2 and 18. I understand if this gets rejected but I'm just happy I found this skip

Mod Message: Time starts at 2.367 and ends at 274.100 at 30 fps to get a final time of 0h 4m 31s 733ms. Retimed using yt-frame-timer