Boos are minor characters in the SMG4 series.
They are white, round ghost enemies from the Mario franchise. The species has appeared several times in SMG4's videos. Other types of Boos include Big Boos and their leader, King Boo.
Luigi is frightened by them, but, ironically, they are scaredy cats as revealed in The Mario Channel: MARIOBUSTERS.
Notable Individuals
- King Boo
- Big Boo
- Cameraman Boo
- WeaBOO
- Boolossus
- King Boos Wife
- King Boos Son
Appearances
- Super Mario 64 Bloopers: Blooper Problems debut
- Super Mario 64 Bloopers: Have you seen this Polygon? Cameo
- Mario Kart 64 Bloopers: An Adventurous Drive Cameo
- Super Mario 64 Bloopers: Darkness Takes Over Cameo
- Super Mario 64 Bloopers: Enter X Cameo
- Super Mario 64 Bloopers: The Land that Never Was Cameo
- Super Mario 64 Bloopers: Hide and Seek Cameo
- Super Mario 64 Bloopers: Luigi and the Haunted Castle
- Super Mario 64 Bloopers: Operation G.A.Y Cameo
- Super Mario 64 Bloopers: Rich Glitch minor
- SM64: Cooking with Mario and Bowser 2! minor
- Sonic The Derphog: The Evilness Of Eggman(?) Cameo
- SM64: War of the Fat Italians 2014 (200k Special!) minor
- SM64 Bloopers: Castle Royale Cameo
- Mario 64: M. K. Nature Channel
- SM64 Bloopers: Smexy Soccer
- SM64: The SMG4 QNA (400K subs :D) Cameo
- SM64: Meet the Luigi
- R64: An Overdose of Dr. Mario Cameo
- SM64 Shorts: The Plumber Problem minor
- R64: Boo Busters
- SM64: War Of The Fat Italians 2016 (900k Special) Cameo
- R64: We're going on a Luigi hunt Cameo
- R64: Stupid Mario Maker Cameo
- The Mario Channel: MARIOBUSTERS minor
- SMG4: Marioception Cameo
- SMG4: AREA 64 Cameo
- The Mario Channel: MARIO'S CHALLENGE Cameo
- SMG4: Stupid Luigi's Mansion Cameo
- SMG4: Stupid Mario Odyssey 2 Cameo
- SMG4 Halloween 2017: Trick Or Treat Wars Cameo
- SMG4: Wild, Wild Mario Cameo
- SMG4: Mario University minor
- SMG4: Stupid Mario World minor
- SMG4: New Year, New Mario minor
- SMG4: Mario's Fancy Dinner Cameo
- SMG4: The Mario Café minor
- SMG4: Mario The Ultimate Gamer Cameo
- SMG4: Mario SAW minor
- SMG4: Mario's Late! Cameo
- SMG4: The Melancholy of Fishy Boopkins Cameo
- SMG4: Super Challenge 64 Cameo
- SMG4: Mario's Prison Escape Cameo
- SMG4: Mario and the Anime Challenge Cameo
- SMG4: Mario Does The Chores Cameo
- SMG4: Stupid Mario Maker 2 Cameo
- SMG4: If Mario Was Smart Cameo
- SMG4: Mario Waits in Line For Some Spaghetti Cameo
- SMG4: The Grand Festival Cameo
- SMG4: Mario Commits Tax Fraud Cameo
- SMG4: Mario Runs Out Of Toilet Paper Cameo
- SMG4: The E G G Cameo
- SMG4: Mario The Supreme Leader Cameo
- SMG4: War On Beeg SMG4 Cameo
- SMG4: Mario VS Siren Head Cameo
- SMG4: Mario's Spicy Day 🔥 Cameo
- SMG4: SSENMODNAR - 3,826,412 SUB SPECIAL Cameo
- S̶M̶G̶4̶: I Can't Believe It's Not SMG4! Cameo
- SMG4: Mario VS Youtube minor
- SMG4: SMG4 🅴🆇🅿🅰🅽🅳🆂 His Brain Cameo
- SMG4: If Mario Was In Meta Runner Cameo
- SMG4: Mario's Corn Trip Cameo
- SMG4: If Mario Was In... Cyberpunk 2077 Cameo
- SMG4 Christmas Special 2020 Cameo
- SMG4: Stupid Bowser's Fury Cameo
- SMG4: The Pursuit of Happiness Cameo
- SMG4: Perfectly Balanced. Cameo
- SMG4: Mario's Bed and Breakfast Cameo
- SMG4: Mario Babies Cameo flashback
- SMG4: SMG4's Origins Cameo
- SMG4: Mario goes to the Dentist... Cameo
- SMG4: SMG4 Goes Insane Cameo
- SMG4: War Of The Fat Italians 2021 Cameo
- SMG4: If Mario Was In... Nickelodeon Cameo
- SMG4: To Become A God Cameo
- SMG4: If Mario Was In.... SQUID GAME Cameo
- SMG4: Mario Goes To College Cameo as Heavy's transformation
- SMG4: If Mario Was Spiderman Cameo
- SMG4: Mario Suffers Infinite Detention Cameo
- SMG4 Christmas Special 2021 minor
