Mecha-Dr. Fire

Mecha-Dr. Fire was a robot created by the first Dr. Fire with stolen metal to exact revenge on Sir Hottie McHottie. It had an inexplicable tendency to explode upon being defeated. Since the first version was destroyed, it was rebuilt twice, becoming bigger and better each time.

It breathes fire using a flamethrower in its mouth, and jetpacks are attached to its wings to enable it to fly. 

Originates from the Sir Hottie McHottie series.