Retarded64: Stupid Smash Bros is a blooper by SMG4 and the 23rd episode of the Retarded64 series. The name of the video itself is a pun on the game Super Smash Bros, which this video is mostly about.
The Super Smash Bros roster fights Mario... Only they're all retarded.
The episode starts with Mario being a lazy fat a*s resting on a chair, saying things like: "Ravioli" and "Boobies". Then suddenly, a fiery Smash Ball lands directly on Mario. Mario touches the ball in curiosity thinking that it's a meatball and it fills him with it's energy. Mario starts dancing, but he accidentally uses his Final Smash, Mario Finale, unleashing a blaze that effectively roasts Toad. Seeing the damage it did, Mario decides to keep the ball, thinking that it's a great way to heat his spaghetti instead of using a microwave.
Suddenly the Master Hand lurches towards Mario, demanding that he gives the Smash Ball back to it's respective owner. Mario refuses, saying it wasn't his fault that Master Hand couldn't hold the Smash Ball. Mario then flips Master Hand off; in rage, Master Hand starts shooting finger bullets at him. Master Hand pursues Mario through a hallway and tries to mind control him, but it fails due to his stupidity.
Coincidentally, Luigi walks down the hallway. Seeing this advantage, Master Hand mind-controls Luigi and orders him to attack Mario. Luigi uses his Side Special move, Green Missile (Which Mario mistakes for Luigi pooping on the floor), but Mario dodges, causing Luigi to crash into a door.
Mario runs to the main room of the castle and finds Peach, asking her for help. It turns out however that Peach has also been mind-controlled by Master Hand. Mario takes out the Smash Ball, asking it for powers, but it needs to cool down before he can use it again. Peach hits Mario with her Side Special, Peach Bomber, in slow-motion, knocking him into the wall. She then starts using her Down Special, Vegetable, throwing turnips (Which were mysteriously growing from castle floor) at Mario, but he uses his Side Special, Cape, to reflect one of the turnips. Peach then takes out a random Toad using her Neutral Special and uses it as a shield to block the turnip (to the Toad's surprise).
Mario starts to complain about Peach's random and unfair moves until Bowser arrives by breaking through the ceiling, also mind-controlled. Bowser starts breathing fire at Mario by using his Neutral Special; Mario tries to throw a fireball back at him with his own Neutral Special, but with almost no use. Bowser then charges at Mario with Whirling Fortress, his Up Special, but Mario jumps over him, making him crash into Peach and her random Toad, knocking them out of the Castle. Mario celebrates his victory, but Master Hand then strikes him with lightning, teleporting Mario to the Halberd.
Master Hand summons Fox McCloud and Falco Lombardi. Fox uses his Neutral Special Blaster on Mario, which doesn't do much damage, while Falco just starts shouting "Fire!" while flying in the air with his Up Special. Thinking the game broke, Master Hand then sends Captain Falcon, who yells "Show me your moves!" and starts humping towards Mario saying "Yes!" multiple times. Mario grabs Falco and throws him at Captain Falcon in an attempt to stop him, but it doesn't work. Captain Falcon starts beating up Mario, but out of the blue, Kirby crashes his Warp Star into them. Hungry and wanting a small snack, Kirby sucks up Mario and Captain Falcon with his Neutral Special.
After entering Kirby's mouth, Captain Falcon looks around trying to find a way to get out, and then comes upon Kirby's uvula. Captain Falcon punches it like a punching bag with his Neutral Special, and it causes Kirby to throw up almost everything he ate (Including rainbows). Kirby also barfs out Ness and Lucas who instantly get mind-controlled by Master Hand. Ness and Lucas start using their "Big gay" (PK) attacks on Mario (with Ness using his Up Special PK Thunder, and Lucas using his Side Special PK Fire), but then suddenly, King Dedede drops in and yells out "BIG GAY DANCE!" This causes everyone to stop fighting and dance to Rick Astley's "Never Gonna Give You Up". Master Hand thinks everyone is on drugs but SMG4 breaks the 4th wall, saying it's an SMG4 video, which it is. Annoyed, Master Hand teleports Mario to Onett.
Master Hand summons The Pokemon Trainer, along with Pikachu, Jigglypuff, Charizard, Squitle and Ivysaur. Pokemon Trainer commands Pikachu to use his Down Special, Thunderbolt, at Mario, but Pikachu only ends up frying himself with the bolt. Jigglypuff falls asleep with its Down Special, Rest, before Pokemon Trainer could give an action and Charizard, Squitle and Ivysaur won't battle because he commanded all three of them to attack the same time (due to Pokemon rules, and how the Trainer works in Smash). Pokemon Trainer gives up using the Pokemon and takes out a minigun, only to realize Mario already ran away.
Mario pulls out the Smash Ball asking it for powers, but it tells him it still needs charging and that he should grow some patience. Using his new "Rent-A-Fighter" gun, Master Hand summons Link, who repeatedly performs the Up Special Spin Attack while approaching Mario like a BeyBlade. Mario then jumps and punches Link up, causing him to go flying, never to be seen again. Master Hand then summons Samus and Ike. Samus starts charging her Neutral Special Arm Cannon. but Mario jams it with a Rock and sends Samus flying. Ike draws his sword, but instead of fighting Mario, he says "I fight for my friends". Mario asks if he can be his friend, and Ike smiles, nodding his head. The two start dancing to their newly formed friendship, and Master Hand becomes furious with the stupidity of the fighters. Master Hand then remembers he still has his biggest, cruelest fighter, and teleports Mario to Final Destination.
Ganondorf, Mr. Game & Watch and Olimar appear, and start a musical to beat Mario up, singing "Mean Green Mother From Outer Space". Near the end of the musical, Ganon starts charging a Neutral Special Warlock Punch, but Mario grabs Mr. Game & Watch and Olimar, and makes them get hit with it instead, causing them to go flying off the platform.
When the musical finishes, Master Hand gets even more angry with Ganondorf being too slow at destroying Mario, and decides to get the Smash Ball himself. After doing major damage to Mario, the Smash Ball rings "Recharging completed, Smash those motherfuckers". Mario raises the ball to use it, but Ganondorf steals it last second and uses his Final Smash to transform into Beast Ganon. Beast Ganon charges at Mario, but Mario simply dodges Beast Ganon, and he ends up hitting Master Hand, charging them both off the stage. With all the fighters gone, the announcer from Smash Bros Melee announces Mario as the winner.
Later, Mario puts the Smash Ball in a glass display case as a trophy, naming it "Mario's Prized Spicy Meatball". Everything seems fine, and Mario leaves, but then a Sandbag shows up peeking through the window, and gives the viewers a "dirty" look as the blooper ends.