It was funny at first, but now it's getting sad. Let me explain to you all the mystery of Chespin's awkward, fat evolution.

This a picture of a chestnut. Notice the spiky green shell, and the brown nut inside.
Hariboogu was based on this. In the final evo he will shed the green shell. Mark my words, he will.

How do I know this isn't a repeat of Pignite? Becuase Pignite wasn't a shell or cocoon, he was a fucking fat pig. You can take it or leave it, but when Chespin emerges from it's shell, you'll all wish you had chosen the superior starter