The Ultimate Mod King

Bound to 'The Ultimate Mod King' system, he can modify anything as long as a customer makes a request. Mr. Wallace asks to modify a wheelchair to be good-looking, fast, and safe! What the heck is a Thunderclap wheelchair? Racing against sports cars? It even has anti-personnel missiles? A beautiful customer asks to modify a Tank 300, but what the heck is this Type 300 main battle tank?