Dark Bowser is the form the Dark Star takes after absorbing enough of Bowser's DNA, who acts as Bowser's final boss in Mario & Luigi: Bowser's Inside Story and its Nintendo 3DS remake, Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey.
Counterparts (Mario Version)[]
- Evil Diesel or Evil Diesel 10 (Thomas & Friends, both are fan-made)
- Evil Zorran, Evil Johnny Cuba, Evil Smelter, Smelter X, or Smelter Z (TUGS, all are fan-made)
- Evil Oliver (Theodore Tugboat, fan-made)
- Mr. Conductor's Eviler Twin (Shining Time Station, fan-made)
- Dr. Eggman Nega, Metal Robotnik, Mephiles the Dark, or Infinite (Sonic The Hedgehog)
- King D-Mind, Shadow Dedede, or D-Rex (Kirby)
- Robot Plankton (SpongeBob SquarePants)
- Juche Republicball or Reichtangle (Countryballs, Juche Republicball is fan-made)
- Mecha King Ghidorah (Godzilla)
- Master Core (Super Smash Bros.)
- Dark Siren Head (Trevor Henderson Mythos)
- Wither Storm (Minecraft)
- Emperor Doofenshmirtz, Evil Heinz Doofenshmirtz Robot (one of Carl Karl’s evil robots), or Dr. Heinz Doofenshmirtz (2nd Dimension) (Phineas and Ferb)
Counterparts (Bowser Version)[]
- Evil Ten Cents (TUGS/Salty's Lighthouse, fan-made)
- Evil Theodore (Theodore Tugboat, fan-made)
- Shadow Mario, Mario.exe, or Cosmic Mario (Super Mario Bros.)
- Robot Fox, Xof DuolcCm, or Wolf O'Donnell (Star Fox)
- Robot Marth or Shadow Marth (Fire Emblem)
- Scourge the Hedgehog, Metal Sonic, Pseudo Sonic, or Dark Sonic (Sonic the Hedgehog)
- Shadow Donkey Kong (Donkey Kong Country)
- Evil Yakko (Animaniacs)
- Darkman (Rayman)
- Evil Takua (Bionicle)
- SMB Wario or Doodlewario (WarioWare (Portfolio Version), Dark Bowser and SMB Wario are both Evil twins of Bowser & Wario)
- SpongeBob's Abrasive Side, SpongeBob.exe, Robot SpongeBob, or DoodleBob (SpongeBob SquarePants)
- Evil Shaggy/Mirror Monster (Scooby-Doo And The Ghoul School)
- Devil Jin (Tekken)
- Wamson (Super Samson Herms)
- Mal (Total Drama All-Stars)
- Jayden's Clone (Power Rangers Samurai)
- Copy Robot (Mega Man)
- Double (Mega Man X)
- Zorpox (Kim Possible)
- Boy Lynn Loud (The Loud House)
- Horrid Peter (Horrid Henry)
- Shadow Kirby, Devil Kirby, or Kirbysaurus (Kirby)
- Dark Link (The Legend of Zelda)
- Evil Mordecai, Iacedrom, Future Mordecai, Holo-Mordecai, or Stress Monster (Mordecai's Head) (Regular Show)
- Negative Numbuh 1 or Negative Numbuh 4 (Codename: Kids Next Door)
- Bipper (Gravity Falls)
- Zach Watterson (The Amazing World of Gumball)
- Evil Danny (Danny Phantom)
- Nega-Timmy (The Fairly OddParents)
- Evil Pingu (Pingu)
- Julius (in Mickey Mouse's Body) (Mickey Mouse)
- Evil Jim (Earthworm Jim)
- Slash (Teenage Mutant Ninja Turtles)
- Evil Ryu (Street Fighter)
- Axel Gear (Rocket Knight Adventures)
- Mad Jack or Jack-Aku (Samurai Jack)
- Pikachutwo (Pokemon)
- Dark Ness (EarthBound)
- Blood Falcon (F-Zero)
- Retep Niffirg (Family Guy)
- Evil Homer (The Simpsons)
- Evil Crash or Fake Crash (Crash Bandicoot)
- Evil Jimmy (Jimmy Neutron)
- Arnie (Hey Arnold!)
- Mobster Pooh (Winnie the Pooh)
- Faker (He-Man)
- Rasetsumaru (Samurai Showdown)
- Psycho Red Ranger (Power Rangers)
- Evil Orange (Annoying Orange)
- Stan's Evil Clone (South Park)
- Nemesis Prime (Transformers)
- Rude Dexter (Dexter's Laboratory)
- Evil Phineas Flynn Robot (Phineas & Ferb, episodes: Where's Perry? (Parts 1 & 2))
- Negaduck (Darkwing Duck)
- Yuck (Yin Yang Yo)
- Man-Bat (Batman)
- Carnage or Venom (Spiderman)
- Evil Caillou or Classic Caillou (Caillou, Evil Caillou is fan-made)
- Shadow Villager (Animal Crossing, the series needs an actual villain)
- Evil Joker (Persona)
- Shadow Mac (Punch-Out!!)
- Mii Henchman (Mii)
- Pac-Fiend (Pac-Man)
- Robot Shulk (Xenoblade)
- Dog Hunt (Duck Hunt)
- Evil Cloud (Final Fantasy)
- Nomis (Castlevania)
- Villain (Dragon Quest)
- Ojnab (Banjo-Kazooie)
- Evil Terry (Fatal Fury)
- Evil Steve or Herobrine (Minecraft)
- Male Wii Obese Trainer (Wii Fit)
- NomiRandy (Randy Cunningham: 9th Grade Ninja)
- Bad Ending Cuphead (Cuphead)
- PR Polandball (Countryballs)
- Evil Lightning McQueen (Cars)
- Impostor Player (Among Us Logic)
- Impostor (Among Us)
- Nightmare Freddy or Twisted Freddy (Five Nights at Freddy's)
- GMK Godzilla, SpaceGodzilla, or Mechagodzilla (Godzilla)
- Fake Peppino (Pizza Tower)
- Evil Peashooter or Peashooter Zombie (Plants vs. Zombies)
- Evil Firey (Battle for Dream Island)
- Toxic Rick or Toxic Morty (Rick & Morty)
- Pond Scum Norbert Foster Beaver (The Angry Beavers)