Centipede

Centipedes,  also called snakes, are giant yellow monsters that pace back and forth atop the mountains in the level Frustration in Yoshi's Story. They have 16 segments (counting the head), with a pink spike on every segment except the head. They are invincible enemies that make a grunting sound while moving, and they follow a set path of movement to try to obstruct the player.

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.