Bubukan

Bubukan (ブブカン) is a pole vaulter robot enemy in Mega Man 3. They where originally created by Dr. Light to participate in the Robot Olympics. Bubukan polevault over Mega Man and then run back. The base of their pole vault is invulnerable to attack and shields them while they charge Mega Man. They appear in Snake Man's stage and Needle Man's revisited Doc Robot stage in Mega Man 3 and the third Wily Tower stage in Mega Man: The Wily Wars. 

Bubukan MK-II
Bubukan MK-II is a variant of Bubukan that appears in Snake Man's stage in Mega Man III. They do not have a pole, but the upper part of their body can jump over Mega Man. 

Trivia

 * Bubukan may be based on the Ukrainian pole vaulter Sergey Bubka.