Name Any animal that Pokemon never did.

[EvilRaccoon9]

Pillbug(I'm too lazy to show the image...)
http://serebii.net/pokedex-bw/544.shtml

Eh... Whirlipede is based more on pill millipedes than pill bugs... but okay, I'll concede on that. I think it would be cool to have a final evolution stage be based around the rolling up concept. It'd look really cute given the in-battle animations now, too.

And as for Koalas... well, for cute bear-like things there's still Teddiursa... but if you allow me to get tecnical, the pouch characteristic found in marsupials is represented by Kangaskhan.

Heh, this is fun. Keep 'em coming.

You're having a good time while we here have head aches because of thinking..... hehehehehe...... are you really that fanatic 'bout pokemon?