Crazy Chinese Guy (or Asian) is an insane Chinese man who appears in some of SMG4's bloopers. He lives in a giant Warp Pipe Tower and speaks a somewhat broken hybrid mixture of English and Chinese. It is unsure if he was or ever intended to be a villain, but he was revived to be in SMG3's evil gang and developed a despise for SMG4 and Mario and co.
The Warrior and the Hobo: In this blooper he stood on top of an enormous pipe tower, and when SMG4 confronted him he spoke in gibberish Chinese/English which SMG4 couldn't understand. After an hour of passionately arguing with SuperMarioGlitchy4 he was thrown off the structure, and it is implied he fell to his death.
Smg3's plan to destroy Smg4 because he felt like it: In this blooper he was brought back to life alongside many other villains, although it is unsure if he ever intended to be one.