|Ally||Koopa Troop, Bowser|
|Debut Appearance||Super Mario World|
|Latest Appearance||New Super Mario Bros. 2|
The Urchin is a purple and more rarely red enemy of Mario found in various games throughout the Mario series. It has two large eyes and large spikes that it uses to attack and defend it's self. He can come in mainly two different sizes with a smaller one and a giant one which is found in New Super Mario Bros. Wii. If Mario touches this enemy he will sustain damage. There are few ways to kill this enemy per game.
Urchins appear underwater in the level Forest of Illusion 2. There is no basic way to defeat them unless players use a Grab Block. Fire Mario cannot defeat him and Yoshi cannot eat them but he can bounce off them. Mario will take damage if he touches one of the Urchins.
The regular under water purple Urchin is fairly common in Super Mario Galaxy and Super Mario Galaxy 2. He roles around on the bottom attempting to run into Mario if he gets close enough. If Mario gets hit by him he will take damage and lose health. He is rather large in these games being larger than Mario. He can be defeated by throwing a Green Shell at him. However there are red fuzzy looking Urchins that are encountered rarely in the games in association with lava. Unlike the other purple Urchins these are encountered on land. These can be defeated with shells or by using fire balls when Fire Mario. Also if you lure these Urchins into the lava they will burn up.
Urchins appear in quite a few underwater settings in New Super Mario Bros. Wii. In this game they appear in two different sizes being a medium one about the size of Mario and a much larger mega one. Mario can freeze the smaller one into an ice block as Ice Mario and it can also be defeated with fire balls as Fire Mario. Shells can also defeat it, aside from this it can not be defeated and if Mario touches it he will take damage. The mega one cannot be defeated by any means, unless Mario is invincible.
Urchins will be appearing in New Super Mario Bros. 2.
Urchin has only appeared in one Mario Party game to date being the most recant Mario Party 9. In this game he plays a minor role in the mini-game Pier Pressure were if a player catches an Urchin on their fishing pole they are out of the game. During the boss mini-game Blooper Barrage Blooper will throw Urchins at the players.