Little Mouser

Little Mousers, also known as Squeeks or Squeaks, are a species of small, mice-like creatures who wear bandannas that obscure their faces. Judging from their English name, one would think that Little Mousers are relatives of Mouser of Super Mario Bros. 2. However, their Japanese name, チューさん chuu-san, defies that notion, which is why they have been renamed in later games.

Super Mario World 2: Yoshi's Island
The first appearance of Little Mousers was in Super Mario World 2: Yoshi's Island, were they appeared infrequently as enemy creatures who would try to steal a Yoshi's egg and scurry away with it, into their burrows. Little Skull Mousers also appear - they are just like normal Mousers, except they wear skulls on their heads and cannot steal eggs.

Mario Kart: Super Circuit
Little Mousers later appeared in Mario Kart: Super Circuit as obstacles in the Cheese Land course.

Paper Mario: The Thousand-Year Door
In Paper Mario: The Thousand-Year Door, Little Mousers were renamed Squeeks and were shown to be one of the primary inhabitants of Rogueport and Rogueport Sewers; a white Squeek, known as Ms. Mowz also appears in Paper Mario: The Thousand-Year Door as an optional partner of Mario.

Mario Party Advance
In Mario Party Advance, a Little Mouser named Mouser appears as the boss and owner of the Duel Tower. He challenges the player to the game Chicken!. If the player wins, he receives the minigame. The ending said that he was bummed that Whomp left the Duel Tower.

Mario Party 8
In Mario Party 8, a Little Mouser also makes a cameo appearance in the board Shy Guy's Perplex Express.

New Super Mario Bros. Wii
Little Mousers reappear in the game New Super Mario Bros. Wii where they are found in Ghost Houses. They are troublesome and run quite fast. When Mario or a teammate approaches, they stop scuttling and start jumping in place. When the player leaves, the Mousers continue scuttling. In this game, they appear to be white and have huge buck teeth. If one is stomped, all nearby Mousers will run in panic.

Notable Little Mousers

 * Mouser – ''Mario Party Advance
 * Moustafa – Paper Mario
 * Ms. Mowz – ''Paper Mario: The Thousand-Year Door
 * Pierre – ''Paper Mario: The Thousand-Year Door

Sub-Species

 * Little Skull Mouser – Little Mousers who wear a skull helmet on their head.
 * Mowz – Little Mousers who act as thieves.
 * Nomadimouse – Little Mousers who inhabit the Dry Dry Desert.