Well, that sounds awesome flapperultra. If you can give me some examples of your work, I can most likely take you on board the 1.5 update and maybe change up the way the MM Killers work as well as finally implement the 100 room challenge. Finally, we can add 8 more DLC stages to the mix. The only work you'd possibly do there is program the 8 bosses and any additional enemies (which won't go over the single digits honestly).
If I sign you up, I'll give you the GMK file for you to study and browse the coding and you tell me if you think its possible to do what I'm asking. :) Looking forward to your response.