I think that game gear version of the game should be added. i was surprised to not find it anywhere :D

It had mini games between stages, and a map.

This game (not affiliated or so with the creator, just to make clear what i m talking about):

Hi,

starting classic and converting character in between the run to expansion is allowed. Is the same true for patching the game to a newer version? (I would guess it is allowed, just want to make sure out of interest)

This is not a question about if this gives an actual advantage, just a theoretical rules question! :) I have no idea if it would make any sense in using an older version in practice.

example: start game at classic 1.07 use some bugs of 1.07 patch the game in between to 1.14d use some advantages of 1.14d convert char to expansion kill baal