I think The Evil Twins are a little underappreciated. I've seen some people disregard them as generic, because of the name "The Evil Twins". but the twist in Twinsanity is that they're not just the Evil Twins. they're Cortex childhood pets and the first animals he tested the Evolvo-Ray on.

Crash Twinsanity is still the funniest Crash game with the best story. I really wish the devs can recapture the magic of that game. The game wasn't even finished and it's still brilliant.