Hm... you'll have to excuse me. I never got into the kinds of hacks that would change iso sizes. Um... and I have no idea how flags work that's for sure.
Also, I noticed in "Melee, hacks and you" you talked about ground flags? Could I get more information on those please?
These are the collisions for Mushroom Kingdom 1 (top part is the actual collisions, bottom part is the weird boxes that need to surround the collisions for them to work). That's about as far as I got in that field...
Actually, if I may make a theory here (this starts on line EFDO):
00 04 00 02 00 45 00 01 FF FF FF FF 00 01 00 00
I predict that this line says something like this:
"Create a collision out of points 04, 02, 45, and 01 (in that order), and assign it the value of 01"
With the "FF"'s in there as filler?