Pukapelly

Pukapelly (プカペリー) is a flying enemy robot from Mega Man 5 that pursues intruders, appearing in Gravity Man's stage, Gyro Man's stage, and in some stages from Proto Man's Castle and Wily Castle. They stay in place with their eyes closed, and when they open their eyes they move in the direction of their target.

Hits Data Chart
Amount of shots/hits from Special Weapons it takes to destroy a Pukapelly.

Trivia

 * A Pukapelly is on the American boxart of Mega Man 5, but there is a turret sticking out of it.  Pukapellies in the actual game don't have turrets.