He was once a top amateur martial artist but was sidelined by an injury and lost his fire to compete. After hitting rock bottom, Rudy took his entire life savings and bought a Bobby Wasabi dojo in The Seaford Strip Mall. He can be wacky and gross at times, but he has a mature side when needed. He also loves his electronic, futuristic toilet, who he named "Mertle". He obviously loves the Bobby Wasabi Martial Arts Academy, and does not want it to close, but thanks to the help of his students, it didn't.