Right, but he's not using the right version. Looks like he reskinned the Bespin version to look like the Dagobah version, hence the weird arm formations where the pockets were. If that's what he wants, then by all means, but in case he missed the already made version, I recommend using that for this. Having a Yoda backpack in JKA would be awesome and creepy at the same time. In MP, you wouldn't be able to make Yoda move or talk or anything, it would just be a static model. In SP, it would make more sense to code some sort of NPC class or script that allows a model to be on the back and still function.