I did a run, got 2h43 min. The important thing is all the turtles players from all the franchise can be in one leaderboard with this category.

Do I have your support guys?

This are my proposed rules:
1- TMNT original game
2.- TMNT II USA
3.- TMNT III USA
4.- TMNT IV

About the swaps the time you need to change your game, that is all. In my case I took longer to put game 4. But no problem.

I mentioned this to skunky the other day as well. I second this. I think skunky uses 30 sec swaps and looks like it works fine.

If you want anything to be an official category, get some people to run it and when we have three or so videos available for the same rule set, we can see about getting a category made.

Here are the rules I propose:

Choose NTSC-U or NTSC-J versions for any of the four games. One minute break between games to allow for game changing. TMNT 4 is played on Hard difficulty. All other built-in options can be set to whatever the player chooses (Lives, control style, etc.). Timer start/split/end:

Timer starts on control of character in TMNT 1.

TMNT 1 timer ends when Shredder's last health bar is depleted.

TMNT 2 timer starts on character select, and ends on loss of control after the Shredder battle.

TMNT 3 timer starts on character select, and end on the last hit on Super Shredder.

TMNT 4 timer starts on character select, and ends on loss of control after the Super Shredder battle.