Woozy Guy

Woozy Guys are a variant of Shy Guy that performs forward flips in the air instead of walking. Woozy Guys appear in Super Mario World 2: Yoshi's Island (and its reissue), Yoshi's Island DS, Yoshi's New Island, Yoshi's Woolly World, Poochy & Yoshi's Woolly World, and Yoshi's Crafted World. They appear in the Island Museum in Yoshi's Island DS. In Yoshi's Woolly World, unlike in previous appearances, all Woozy Guys in this game are purple, to help distinguish between them and Shy Guys. In Yoshi's Crafted World, they go back to sharing the same colors as Shy Guys, except in Hoop-Jump Hop, where Shy Guys wear circus attire, and Outer Orbit, where Shy Guys wear space attire and are affected by low gravity.

Super Mario World 2: Yoshi's Island
They come bouncing and jumping around while doing somersaults.
 * Official Nintendo Player's Guide: Stumbling down steps, the Woozy Guy looks for someone to help hold him up.
 * Shogakukan guide: 宙返りをしながらぴょんぴょんとはねてくる.

Yoshi's Island: Super Mario Advance 3

 * Shogakukan guide:「宙返りしながら、ぴょんぴょんはねてくるへイホー. 」 ("A Shy Guy that somersaults and bounces through the air.")

Yoshi's New Island
''Shy Guy performs acrobatic actions such as somersaults. They tend to move around and make contact with you. Watch the enemy's movements carefully, and try to defeat it by eating it or hitting it with an egg.''
 * Shogakukan guide: 宙返りなどのアクロバティックな行動をとるヘイホー. 動きに惑わされてこちらま動き回るて、接触しがち. 敵の動きをよく見て、食べるかタマゴを当てて倒そう.