|Nom de guerre||Frank|
- "Fail-Proof Frank can't be beaten."
- — Frank
A misguided youth, Frank is adept with a switchblade, and sends out his robot Frankystein Mark II after he is defeated. When Ness defeats both of them, Frank changes his ways and starts working at a local Burger Shop. He is seen near the end of the game, where he (among many other characters) pray for Ness's safety, helping him defeat Giygas.
It seems that he is possibly either in his teens or early twenties, as he says he's still "underage" when you talk to him after defeating Giygas. His battle theme is not unique, as he shares this theme with a later enemy in Twoson, the New Age Retro Hippie. The reason he thought he was fail-proof is because no one before Ness challenged him to battle at all. Even the Onett Police Force did not try to arrest him nor the Sharks, hinting at the ineffectiveness of the Onett Police. Frank Fly is the first boss.
After you defeat him, when you speak to him again, he lets you rest to recover HP and PP.