Chameleon

Chameleon could be a NPC like frog.

It can camoflauge into colors. if you're prey, it's the same color as the green circle around it, if it's a predator, it's the same color as the red circle (yes, it could eat you if you're tier 1 or 2)

Can be eaten by fox to dragon.

Chameleon can eat flys, frogs can too.