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This article is about the boss Mouser. For the character from The Super Mario Bros. Super Show! and Nintendo Comics System, see Mouser (The Super Mario Bros. Super Show!). For the character from Mario Party Advance, see Mouser (Mario Party Advance). For the similarly named recurring species in Yoshi and Paper Mario titles, see Little Mouser.
Not to be confused with Meowser.
Species Mouse
First appearance Super Mario Bros. 2 (1988)
Yume Kōjō: Doki Doki Panic (1987)
Latest appearance Ultimate NES Remix (2014)
Latest portrayal Charles Martinet (2001)

“Here, have some bombs!”
Mouser, Super Mario Advance

Mouser is a large, humanoid mouse who wears sunglasses, gloves and boots. He is a resident of Subcon, the land of dreams. Not much is revealed about Mouser, though it is mentioned that he is prideful and utilizes his bombs to destroy good dreams.[1] He is not to be confused with the Little Mousers, which what seem to be small versions of Mouser, but derived from their Japanese name, are completely different.


Yume Kōjō: Doki Doki Panic[edit]


Mouser made his debut in Yume Kōjō: Doki Doki Panic. Mouser helped his king, Wart, to invade the secret world of a storybook with his bombs. He is fought three times in the game: in World 1-3, World 3-3 and World 5-3, with a powerful white Mouser with red shoes and gloves exclusively appearing in the latter level, taking seven hits to defeat.

Super Mario series[edit]

Super Mario Bros. 2[edit]


In Super Mario Bros. 2, Mouser appears twice, one, with pink ears and shoes, in World 1-3 and the other, with green ears and shoes, in World 3-3. The fight in World 5-3 of Yume Kōjō: Doki Doki Panic was deemed too difficult, and was replaced by Clawgrip.[citation needed] In battle, Mouser throws bombs at the player, which will explode after a short amount of time. In order to injure Mouser, players need to grab one of these bombs and throw them back at him so that it explodes near the rodent; doing this several times will defeat him. Both Mouser fights give him a slightly different color each time (only in the NES version), and the second fight takes more hits than the first. In Super Mario Advance, a new boss, Robirdo, took his place in the third world and Mouser replaced Tryclyde as the boss of World 6. Tryclyde remained the boss of World 2. Like the main cast and the various bosses, he was given voice acting. His lines were performed by Charles Martinet, who voiced him with a snide tone.

BS Super Mario USA[edit]

Mouser BS SuperMario.png

In BS Super Mario USA, Mouser, Birdo and Wart have returned to Subcon to invade it again. Mouser is found in World 1-3 as the main boss of the world. He is no different than in the original game. However, like Wart and the Birdos, he could cast his own magic spell; such as turning enemies and objects into bombs, and throwing giant bombs out of nowhere.

The Super Mario Bros. Super Show![edit]

Main article: Mouser (The Super Mario Bros. Super Show!)

In The Super Mario Bros. Super Show!, Mouser appears as a member of the Koopa Pack and as the second-in-command of King Koopa. Also, in "Princess, I Shrunk the Mario Brothers," there was a second Mouser, indicating that Mouser is a species.

Nintendo Comics System[edit]

In Nintendo Comics System, Mouser is said to have been the leader of similar looking rats called Mice, before defecting to King Koopa.

"A Mouser in the Houser"[edit]

In the Nintendo Comics System issue "A Mouser in the Houser", it is revealed that the Mice once had a prosperous society, having dug the Transport Tube system and hidden all the treasures they found in it. Eventually, the society of the Mice began to crumble when their king, Mouser, abandoned them and joined Bowser.

In the aforementioned comic "A Mouser in the Houser", several Mice abduct Princess Toadstool after she becomes lost in the Transport Tube system. After kidnapping the princess, the Mice reveal their origin to her and offer her the position of their queen, saying that if she agreed to this proposal, she could have a map of the Transport Tube system, as well as dozens of ready troops to help her defeat Bowser. Princess Toadstool eventually rejects the offer of becoming queen of the Mice when they refuse to help her aid Mario, who was being attacked by Mouser.

"The Buddy System"[edit]

In a later issue of Nintendo Comics System entitled "The Buddy System", a large group of Mice appear to capture Mario and Bowser when the two become lost in the Transport Tube system. Shackling Mario and Bowser together, these Mice interrogate them and learn that Bowser had planned on flooding the Transport Tube system by blowing up the main water valve of it. Deciding to aid Bowser in his plot of destroying the Transport Tube system, this group of Mice use bombs to blow up the main water valve, which causes a large amount of water to flow through the Transport Tube system and wash them away.

"Bedtime for Drain-Head"[edit]

Though several Mice appear on the alternate cover of another Nintendo Comics System comic entitled "Bedtime for Drain-Head", no Mice actually appear in the story.

Super Mario Bros. & Friends: When I Grow Up[edit]

Mouser and Mario.

In Super Mario Bros. & Friends: When I Grow Up, Mouser briefly appears as a disk jockey in the "Disk Jockey" career page. The page states the following:

Mouser is one cool disc jockey! His morning show is a big hit on the radio. Everyone loves "The Mouser in the Morning Show." Everyone except for Mario the sound engineer. "I think I'll go get a job at a library!" says Mario. "I need some peace and quiet. That Mouser plays his music too loud in the studio."

Super Smash Bros. Brawl[edit]

Mouser makes an appearance as a Sticker in Super Smash Bros. Brawl.


Names in other languages[edit]

Language Name Meaning
Japanese ドン・チュルゲ[2]
Don Churuge
Don: Spanish word for "sir".
Churuge: From chū, rat squeaking sound.
French Mouser -
Chinese 老鼠大王[3]
Lǎoshǔ Dàwáng
Mouse King


  • In Mario & Luigi: Bowser's Inside Story, after Bowser gets to his old castle which was taken over by Fawful and renamed Fawful's Theater, a Shy Guy says "This castle... it had a name... long ago... Browser's Castle? Mouser's Castle? Wowser?"
  • In the Star Fox comic "Farewell, Beloved Falco", a mouse resembling Mouser is a member of the "FREE AS A BIRD" gang of space hot-rodders.
  • There are some unused sprites in Super Mario Advance of what appears to be an unknown mouse enemy, indicating that he started out as a regular enemy type before undergoing a transformation, much like Fryguy and Clawgrip.[4]


  1. ^ "It is a bomber of bad dreams that destroys good dreams. It is proud and it doesn't believe that it is just a mouse." - Super Mario Bros. 2 instruction booklet, page 27 (Mouser description).
  2. ^ Yume Kōjō: Doki Doki Panic instruction booklet, page 35.
  3. ^ From the ending scenes of Super Mario Advance as localized by iQue. Reference: 无敌阿尔宙斯 (August 28, 2013). 神游 超级马力欧2敌人官译. Baidu Tieba. Retrieved February 2, 2017.
  4. ^ [1] (accessed October 25, 2013)