This was a quick scribble example of the rat key idea I was talking about
So basically whoever has the rat key can.. How we could say "control" in a way.. Rat man

The second picture is if Eleanor had the key.. I didn't have time or I would have made it better but basically I just turned him fun time lol
Also I forgotHisEars

And a few things that aren't changeable about the rat man
Such as the human eye.. A thing about it is no matter what he always does what he can to hide it.. Whether it be by the fur or hats or anything, however sometimes he can't and well oof too him

And with the rabbit ears they can be in anyway BUT if they are up then HIS LEFT ear must be bent.. HIS LEFT
If they are down then whatever

And that black stuff on his hand and legs.. Must always be there, however it can be covered by clothes and such

There are a few other things.. And as I said this is just an idea and a quick scribble of it
I'm thinking of maybe asking a few of my friends to see how it would work