An idea for Tyke where he starts to glow orange when he gets too stressed, eventually he 'explodes' like a real bomb and flames even come out of his body in every direction, which is the stress being released. He'll be fine though, and it doesn't hurt him at all, and his body will slowly fade back to its original colors. But if you're standing too close to him when it happens, you'll more than likely be sent flying back and potentially get minor burns from it