Muddy Buddy

A Muddy Buddy is a purple creature in Super Mario World 2: Yoshi's Island, appearing exclusively once in Level 5-4, Sluggy The Unshaven's Fort. When it comes into contact with the Yoshi, it will stick to his feet, allowing him to safely traverse over spikes. Yoshi can stop riding it with a Ground Pound. Unlike Poochy, another rideable creature, Yoshi can control the Muddy Buddy. In the game's remake, Yoshi's Island: Super Mario Advance 3, it makes an additional appearance in Secret 2, Mystery of the Castle?.

Super Mario World 2: Yoshi's Island

 * Shogakukan guide:「ベトッと足の裏にくっついたら、トゲの上でもへっちゃら. ジャンプ力もアツプする. 」 (If it sticks to the soles of your feet, you can safely walk on spikes. It also boosts your jumping ability.)
 * Player's Guide: When Yoshi traipses over lethal spikes in Sluggy the Unshaven's Fort, this funky-looking fellow protects his feet.

Yoshi's Island: Super Mario Advance 3

 * Shogakukan guide: ベトッと足の裏にくっついたれば、トゲの上でもへっちゃら. ジャンプ力もアツプする. ベトベトさんから降りるときは、十字ボタンの下を押ぞう. (If it sticks to the soles of your feet, you can safely walk on spikes. It also boosts your jumping ability. To get down from the Muddy Buddy, press down on the Control Pad.)