So, an important note before this tutorial begins, I did NOT create the Mr. M model or anything; it is just what I'm using as an example for this tutorial.
Another important note is that the nose problem, I didn't notice it at first, and was too lazy to fix, and the right-clicks are not shown in the pics, only for left-clicks.(Most of the circles are left-clicks, though some circles are notes)
There are three models that are used for this tutorial:
Brawl Mario's Model
Brawl Mario's Model, with messed-up textures(Just because I was too lazy to switch it back to the regular textures and everything)
A Model of Mr. M
This is a picture tutorial, which basically covers how to take an existing model, for example, this, and put that model over another model's pose, for example, this posed model, resulting in this. Now what this can be used for, that's up to you, but since it's copying poses, it would likely be used primarily for portraits, but I can't guarantee that.
So anyways, the above spoiler is the general tutorial, and the below spoiler is the mini-tutorial, for if the model is glitchy after porting.(See pic in general tutorial for more info on what I mean)
BrawlBox .76 or later