Dragon

The Dragon was the main antagonist of Season 2 episode 9, "Dragon".

It had Red scales with a slightly pink underbelly, frills down its back and tail, clawed hands and feet, and two wings. In its initial state, it was very small and had no horns, wings, or teeth. Pew made it ginormous, and it spawned a mouth full of sharp fangs, huge wings on its back, and could breathe fire too.