SMG4 has had many Running Gags throughout their time on YouTube.
General:
- Old Man Hobo.
- Luigi (and later Mario) losing his head.
- References to "hobos".
- The Teletubbies.
- Toad on fire.
- Characters exploding.
- "Pingas" (complete with Robotnik in most cases).
- Mario getting naked. Or humping something (usually spaghetti). Or both.
- Everyone saying their Trademark Favorite Food:
- Mario and spaghetti.
- The Toast Fairy and toast.
- The old woman and raisins.
- Toad and candy and/or sugar.
- Bowser and chicken nuggets (later substituted with Saiko's obsession with fried chicken).
- Mockery of Justin Bieber.
- Mario becoming friends with creepypasta and horror game characters.
- Said characters turning out to be Not Evil, Just Misunderstood.
- Peach's Castle either blowing up or being set on fire.
- The Chain Chomp yelling "WHAT THE FUCK IS A SONIC?!?"
- Bowser, Peach, and the banana from Peanut Butter Jelly Time having a Mexican fiesta with Cuban Pete playing.
- Characters surveying an area being accompanied by Sentry Gun sounds.
- As of 2019, Toadsworth getting run over by Mario when going shopping.
- Various characters realizing they can manipulate Mario into doing what they want him to do by bribing him with spaghetti.
- The Waluigi Launcher.
- Bob begging SMG4 to put him in a video.
- Fishy Boopkins' unhealthy obsession with anime.
- The policemen shouting "Stahp right dere!!" and arresting someone by appearing out of the blue and attacking them.
- SMG4 as the "Wallet Inspector".
- Characters from Team Fortress 2 appearing at times.
- Usage of the credits theme from Super Mario Land and Super Mario World used to close out certain videos.
- Mario's "Okey-dokey" being gradually slowed down while he's Backing Away Slowly from something.
- A character (usually Mario) claiming to have "saved the world" when they really did the exact opposite.
- Whenever a Bob-omb is onscreen, it usually says "My main goal is to blow up".
- In all of her appearances, Susan Wojcicki having a different last name in the dialogue boxes.
- "Game Over, YEEEEEAAAAAAAH!"
- Desti calling Mario incorrectly.
- In most arcs, either Bob or Fishy Boopkins end up being an Unwitting Instigator of Doom and cause the main plot of the arc.
- Desti's death being parodied.
- Titles involving Mario doing something mundane such as "Mario Scratches His Ass" or "Mario goes to subway and purchases 1 tuna sub with extra mayo".
- Mario displaying his laziness by summoning a bed out of nowhere and falling asleep.
- A monster or bizarre creature saying "Get in my belly" as it antagonizes any of the main characters.
- Mario making the worryingly non-specific threat of "Mario's gonna do something very illegal!"
- Whenever a barricade is made, expect it to be partially made of Toads, even if they don't feature in the video otherwise.
- Obama's Convenient Ramp Emporium shows up every once in a while.
- Characters' screams being replaced with start up and shut down music.
- Melony sleeping in weird places and through just about anything.
- JubJub being kicked, often complete with "Kick the baby!" Sometimes he'll even express enjoyment from being kicked.
- Steve overreacting when someone tries to kill his chickens (even if they weren't his).
- Mario dying at the end of "Mario Does Things" episodes.
- Belle, Rob, and Whimpu being classified as "side characters".
- Two Luigi Dolls “playing twister”.
- Mario giving a thumbs-up just before falling dead and a flatline being heard.
- The immediate episode after a story arc concludes as well as the first SMG4 video of the year involving Mario doing something supposedly mundane, only to have it spiral into madness.
- Getting burgers was a common gag during older videos.
Specific videos:
- In "How to make a blooper (according to smg4)", there are three common ones:
- Toad repeatedly asking SMG4 to add him in his bloopers.
- Nintendofan997 telling SMG4 that he's a wizard.
- Steve referencing Shoop Da Whoop.
- "Boil the Big Bully" features the Bullies being obsessed over cookies.
- In "Mario for Hire", poor old Luigi keeps getting blamed for Mario's dumbassery, which includes stealing Bowser's car and eating Heavy's sandvich.
- "Mario And... The Well" has several characters suggest to Fishy Boopkins (who's currently stuck in said well) that he should just dig upwards. Obviously, this never works.
- "Mad Mario" had a couple:
- Mario getting KO'd. It's even lampshaded later in the video.
- More and more characters having gone crazy and attacking Mario and co.
- Swears getting censored by Game & Watch bleeps, specifically the f word as stated as the Trivia section of this article.
- Mario, Luigi, Toad, and SMG4 getting the shit beaten out of them in the background by Bob.
- Meggy just staring at the insanity unfolding in front of her.
