I think Mr. Sandman shouldn't be on the wiki and he doesn't even count as as a "Main Antagonist" as he's just the last boxer you face in the game and in the Punch Out Wiki and on his page despite being listed an an antagonist, they're nothing that says that he's the "Main Antagonist" and when you go on the category of Antagonists, it has all the other boxers (Besides Little Mac and Doc Lous) such as Glass Joe, King Hippo, Bear Hugger, etc. and Bear Hugger, Glass Joe and King Hippo haven't done anything.

Next is false crimes and it says that he attempted murder and committed assault, where's your proof as in the games. Despite wanting to get his belt back from Mac, he had no intentions to kill Little Mac and as on the Punch Out Wiki, it says nothing of him wanting to attempt a murder nor kill Little Mac which the "Attempted Murder" is false and as for the Assault part, like with the attempted murder they're is nothing nor proof that said he committed assault and if you count him punching Glass Joe, Von Kaiser, Disco Kid, King Hippo, Piston Hondo, Bear Hugger, Great Tiger, Don Flamenco, Aran Ryan, Soda Popinski, Bald Bull and Super Macho Man as assault which doesn't because he's doing this because it's a boxing match and the same implies with his fight with Little Mac as punching is the whole point of Boxing as a sport

Conclusion, Mr. Sandman isn't a villain and all the points have been debunked by me