Harry Hedgehog

Harry Hedgehog is a blue-hedgehog enemy appearing in the Yoshi series.

Super Mario World 2: Yoshi's Island
Harry Hedgehog first appears in Super Mario World 2: Yoshi's Island and its Game Boy Advance remake.

In the game, Harry Hedgehog appears mainly in cave levels to get in the way of the Yoshis. When Yoshi comes close to these foes, they turn from small to all puffed up foes. They cannot become eaten when swelled up. The level The Cave of Harry Hedgehog is named after this foe. In the remake, they appear in another level, Go! Go! Morphing!.

Trivia

 * The are slightly based upon Porcupos from Super Mario Bros. 2.
 * Also, Harry Hedgehog is strongly based upon Sonic the Hedgehog and is made to mock Sonic, due to Nintendo and SEGA being brutal business rivals in the 1990's. SEGA constantly mocked Nintendo's works, making Nintendo use a comeback go with this character.
 * Despite their rivalry being ended in late 2001, he still reappears in the remake Yoshi's Island: Super Mario Advance 3.