It's been discovered that it's possible to skip to the credits from level 15 on UV and NM skill, regardless of whether or not cheats or level select have been used. As a result, some category changes have been introduced.

1. Speed has had its rules updated to change the objective from "beat all 16 levels" to "reach the credits". However, level select and cheats are still not allowed in this category. Effectively, this means you no longer have to play Level 16 in this category, but you still have to start the game from Level 1 and play up to Level 15.

2. A misc category has been introduced, called Any%, which requires you to reach the credits by any means necessary, including cheats. This is kind of a meme, but whatever. I figured I may as well put it on the board, if people feel like competing in it.

No changes have been made to Max. All levels still need to be completed with all kills/secrets. This includes Dis and Military Base.

Here's the video showcasing the glitch. It was found by Alexo and I've confirmed it works on console.

I've found a lot of optimized skips with it, but a Discord user named Icy, was the one who found it while planning a TAS for Doom GBA. Apparently he knew it was possible since 2005, but it never circulated online until now... always new things to find!

I just tried to do the same thing as that version, and it worked out. There is also ways to get around the white screen crash in many levels! I'll be working on tutorials soon for a lot of the OOB i've found.