* ActorSharedBackground: Bear Hugger is voiced by Creator/RichardNewman, who coincidentally lives in Bear Hugger's home province of British Columbia.
** Mike Inglehart, one of the directors of the Wii game, is the voice of Super Macho Man.
** Matt Hardy and Scott [=MacFayden=], the game's sound crew, provide the voices of Little Mac and King Hippo respectively. (Although the voice is of course heavily distorted in [=MacFayden=]'s case)
* DevelopmentGag: The gaming studio that developed the Wii version is located in Salmon Arm, British Columbia in Canada. Which is where they decided to have Bear Hugger--and even named one of his moves--from.[[note]]He's actually from Saskatoon, Saskatchewan, at least according to the Super NES game.[[/note]]
* FanNickname: Von Kaiser's [[OneHitKill One-Hit KO]] attack in "Title Defense" mode has been given the name The [[VideoGame/FatalFury Von Kaiser Wave]] by many Punch-Out and Fatal Fury (And consequently, [[VideoGame/TheKingOfFighters KOF]]) fans.
* MemeAcknowledgment: In the Wii game, Doc Louis may joke about stealing Mac's bike in the chatter between rounds.
* NoExportForYou: Inverted. Japan didn't get a release of ''Super Punch Out'' for SNES, except for a very limited edition in March 1998.
** Great Tiger in Title Defense mode makes several illusions of himself between rounds. They hang out on the ropes talking like they're on break.
** Doc Louis and Mr. Sandman are both voiced by Riley Inge. These two characters are also the only ones that refer to Little Mac as "Mac baby".
* UnintentionalPeriodPiece: The NES game, with Mac's pink track suit, Popinski being from the USSR, Great Tiger's hometown being named "Bombay", and Mike Tyson being champ definitely set it in the '80s. If Mac's able to beat Super Macho Man, the player will see a paper that gives the date as April 1, 1987.
** The GuestFighter for the Wii game was originally gonna be [[Franchise/SuperMarioBros Princess Peach]], but was dropped because [[WouldntHitAGirl the idea of punching out a woman made them uncomfortable]]. See [[http://kotaku.com/5320198/punch+out-devs-talk-graphics-difficulty-nixed-princess-peach-idea here.]] [[labelnote:*]]However, Peach [[HilariousInHindsight would get her chance]] to fight Mac later in VideoGame/SuperSmashBros[[/labelnote]]
** Mac in ''Super Punch Out'' is blonde and tan for unknown reasons but beta footage shows him looking far different.
** Bear Hugger was originally going to appear in ''Mike Tyson's Punch Out'', but was replaced with King Hippo.
** Mario's cameo was going to be kept in ''Wii'', but they couldn't make him fit in with the game's art style. Instead, they opted for a generic referee.
* TheWikiRule: [[http://punchout.wikia.com/wiki/Punch-Out_Wiki Punch-Out Wiki]].
* In an interesting coincidence, the initial barrage of punches Mike Tyson hammers you for in the NES version lasts 91 seconds, the amount of time it took Tyson to knock out contender Michael Spinks in 1988.
* The only boxers to appear in all three console versions of the game are Bald Bull, Super Macho Man, and Mr. Sandman. Due to Arcade Super Punch-Out being a MissionPackSequel, no boxer has appeared in all games.
* In the NES version, a camera held by an audience member at the top-right corner of the screen will flash when Bald Bull's bull charge can be countered.
* In the same vein, an audience member who looks like they're wearing shades will frown with their mouth open right before Super Macho Man throws his sudden clothesline punch, making the attack easier to dodge.
* Little Mac (or someone that looked like him) [[http://www.unseen64.net/2009/05/26/super-punch-out-snes-beta/ was]] going to be the player character in the SNES Super Punch-Out!! before being replaced by the blond boxer for unknown reasons. Nintendo has [[FlipFlopOfGod flip-flopped]] over whether this character is Mac with a makeover (as they said he was when he [[GuestFighter guest starred]] in the Gamecube version of ''Fight Night Round 2'') or an entirely new boxer for several years.