Centipede

Centipedes , also called snakes , are giant yellow monsters that pace back and forth atop the mountains in the Level 3-4: Frustration in Yoshi's Story. They have sixteen segments (counting the head) with a pink spike on every segment except the head. They are invincible, and sometimes take a new path when there is a fork in the road.

Profiles and statistics
''Dodging them by jumping is also a challenge. Hang on, hang on.''
 * Shogakukan guide: ジャンプでかわすのも一苦労. ふんばれ、ふんばれ.