A Super Mario Thing is an aptly named ROM Hack of Super Mario World by Talkhaus, the community surrounding Let's PlayerRaocow. Originally made as a "tribute" to his hack-related efforts, it's a game that follows his, at times, Surrealistic commentary to a T, even moreso if one doesn't know about the plethora of insider jokes with which the community could not help but fill the game. It was started and originally managed by Kristian, and later taken up in the management department by YoshiCookieZeus.The game stars Demonote and, if you choose Player 2, her slightly purpler Palette Swap, Iris, an armless cycloptic demon alien minion, which pretty much summarizes the nature of the game. During an attempt to purchase vegetables for her anonymous master, something goes wrong and she is sent to what appears to be the Mushroom Kingdom of the future, falling right into (or as it were, onto) a deep-seated political conflict about food and is sent out to create a peaceful understanding between the two parties. Mayhem ensues....Okay, so we lied. The real goal of the game is to murder the king of the Charlies (Chargin' Chucks), who resides deep within a volcano beyond a great veil of Nintendo Hard platforming, item puzzles, silly Touhoushout outs and other assorted obstacles.You can find the game as an .ips patch on ROM Hack archive SMWCentral.A sequel, A Second Mario Thing (A2MT), was stuck in Development Hell for a while before being officially discontinued on January 25th, 2014, but that didn't stop Raocow from playing it anyway. Demo also stars in another ROM hack, What the Hell?, by Raocow himself that is otherwise unconnected to ASMT.Finally, in March 2013, Talkhaus released a prequel on the Super Mario Bros X engine: A Super Mario Bros. X Thing: Prelude to the Stupid, which throws in even more fanservice, up to and including Raocow himself being a playable character. The plot finds Demo and her sister Iris in the Castle of Absolutely No Significance, where they plan to stock up on vegetables. Meanwhile, Koodnote the Ensemble Darkhorse star of another Super Mario World hack, Drama Mistery is infiltrating the same castle for unknown reasons, Sheathnote the protagonist of Raocow's webcomic, Artificial Time XS sort of falls into their reality, and a certain wacky Let's Player finds himself surrounded by his own creations...The sequel to that game, A2MBXT, has also already been announced.A spinoff game called A Zelda Classic Thing is also being made, and a 3D leap made by romhacking Super Mario 64 is at a veryearly development stage.
Anticlimax Boss: Invoked. Black Plague, the true final boss, is deliberately incredibly easy. According to Raocow himself, who designed that battle as a joke, what little difficulty involved was supposed to come from the time limit. The timer in that room is disabled.
Bad Future: The game takes place in the Mushroom Kingdom many years after the disappearance of all the familiar characters, with Mario missing, King Charles taking Bowser's place as Big Bad, and the Yoshis living as refugees.
Happens again in the prequel in a certain level that takes place in the Mushroom Kingdom, wherein you have to fight your way through Bowser's army. Dying in this level replaces it with a decidely more... bleak version where the Mushroom Kingdom is a lava and soot-covered wasteland. Don't worry though, beating the Bad Future version restores the level to its original state.
Bee Bee Gun: One fortress level has cannons that launch bees.
Book Ends: At the end of the intro cutscene after you warp to the Mushroom Kingdom, you end up landing on a Charlie's head. At the beginning of the final stage of the King Charles fight, you end up landing on his head.
(at the beginning of the game) Demo: Oh dear. This certainly isn't a grocery store. What to do? (later, at the beginning of the bonus world) Demo: Oh dear. These certainly are not my master's quarters. What to do?
Expy: The robotic Thwomp King Charles's pilots in his boss fight is clearly inspired by the Heavy Press.
Evil Overlord: King Charles, in a sense. He reigns over nearly everything.
Fake Trap: "the hardest lvl" is a parody of Kaizo hacks. That said, not everything in that level is a fake trap. As Pink Kitty Rosepoints out, the rule seems to be that anything nigh-impossible is fake, but anything reasonably doable is real.
Feathers/Leaves are... well, still leaves, but it's a Spinach leaf instead of a stock leaf. The transformations differ between characters in ASMBXT: Demo gets the classic Mario cape, while Iris gets the traditional raccoon ears and tail.
Never Say "Die": Those aren't deaths, they are very much intentional demos.
No Fourth Wall: ASMBXT has "Technical Difficulties," where one of the pipes will take you directly outside of Raocow's house as he does a Let's Play.
This even happens In-Universe: a particularly powerful Computer Virus destroys Raocow's computer to such an extent that it breaks reality, causing him to go and kill the virus physically, winding up right at Demo's side at the Castle Of Absolutely No Significance afterwards. He's understandably freaked out by standing face-to-face with his own creation. In Raocow's own Let's Play of ASMBXT, this even doubles as Recursive Reality.
You can speak to one of the grass-patches outside the castle in ASMBXT, and it will tell you what version you're playing, along with some nonsensical message.) On the final update, the message is addressed to "Samuel"note Raocow's real first name.
Our Monsters Are Weird: Doughnuts of Doom! A flying lighter that throws out enemies who don't want their heads on fire, torpedoes with Groucho Marx faces, Yaranaika Bullets.
Out of Focus: While Demo and Iris are the only characters that are playable for a vast majority of ASMBXT, Kood still stands out because, until you unlock the "Turn into Everything!" room, he only features in one single level.
Palmtree Panic: And So It Began, Water Water Everywhere, Overly Hot Beach
Pipe Maze: In a literal sense in The Switch Where Yoshi Jumps A Lot. Played straight in a later level.
Platform Hell: Although the game normally qualifies as a Nintendo Hard hack, there is one section in King Charles's Castle that first of all, disables Spin Jumps. So? Well there's a spinning Koopa Shell that you have to jump over and avoid... while in a room with a disco-light like dealing with giant spiked pillars, Thwimps, Thwomps, blocks that enemies can go through but you fall through, and Fishing Boos. Raocow even calls this specific room "Hell".
The game is basically made out of shout outs to Raocow and stuff he played, such as other ROM Hacks (2chan's Vip and Wall Mix series in particular), cat planet, Touhou and a lot of other things.
In addition, one of the levels in the prequel, "Blood Cavern", is a homage to Space Funeral, Eversion, and other games with a creepy aesthetic.
More bizarrely, the ASMBXT level "Oh, No! It's Lakitu!" contains numerous shout outs to Devo. Word of God from the creator of the level says they were sneaked through the development process to see if any of the other contributors would notice them. They didn't.
Songs in the Key of Panic: Intentionally taken to hilarious extremes in "Panic Puzzle". The level starts with 100 seconds' worth of time, which, once it counts down to 99, speeds up the already somewhat frantic-sounding level music. The level is designed in such a way that the repeated going through of pipes is necessary, and the timer is reset to 100 seconds every time Demo passes through a pipe, which then triggers the speed-up in the level music once again. By the time the player reaches the end of the level, the music will have become a chaotic-sounding mess.
World 4's castle, a Honeypot Trap, uses a different set of sprites than the rest of the hack, with many of the enemies being replaced by bees—specifically, all of the ghost-type enemies like Eeries and Boos. The latter are therefore Boo Bees.
Unique Enemy: In the original ASMT, the Worms' Cave is the only level in the game that has Blarggs other than the credits. And in one of the strangest examples of this trope, multiple enemies in ASMT are only used in the credits sequence, due to lack of coordination between level designers, including Yellow Submarines.
Unusual User Interface: USS Suboptimal in ASMBXT, which you control by guiding a Parakoopa with the chasing AI to where you want to go.