Sprinklan

Sprinklan is a robot that has the appearance of a Spine, and the behavior of a Spring Head. It surveys floors and will rush at the player (however, it will not if playing on Easy Difficulty). If hit by either a shot or by collision with the player, its head will spring up and fire energy shots wildly. It appears in Blade Man and Strike Man's stages, as well as Dr. Wily stages 2 and 3 (in Hard Mode it also appears in Dr. Wily stage 1). It can be destroyed from the shockwave of a Commando Bomb or with a single shot from the Chill Spike; these are Blade Man and Strike Man's weaknesses, respectively.

Buster Only Strategy
Always try to maneuver to the side of the Sprinklan that is moving away from the character and the player will be able to run up on its tail with relative ease. If there is a ladder, use it to jump over the Sprinklan. If it is necessary to get close to the edge of a platform, keep a small distance (maybe two blocks worth of space) from the Sprinklan and let Sprinklan zoom under. Make haste and attack, because the Sprinklan will come back to make a second pass.