@mlg man, interesting! You helped me correcting the scale_factor thing! (actually, yours is wrong too

)
It's coded on 32 bytes.
I've also messed up with the character-control bit of a slig, and I could control both the slig and Abe at the same time
If you could try to figure out how mudokons work, I'll be grateful. Messing with some bytes, I've been able to make them give me special powers, making them brain-dead or simply crash the game.
Another thing: the offsets are specific to a save file, they change each time you change screen.
Edit: that's not true for the fart and rocks things. It may be interesting to see how the file is structured.
Edit2: There are actually two records for Abe, at least for the MInes level: one of fixed offset, at 0x284, which is used when you restart the level, and one of variable offset, which is the current state of abe.