The Grey Boss Skull Bat is a fairly weak boss. Its AT is rather low, and the huge spread of its projectiles (approximately 130 degrees) does not cause heavy damage to characters. However, attacking this boss with an unprepared team can result in a quick beatdown, since the needles can go across the screen, and can deal decent damage to characters if they are weak. This boss is essentially an airborne version of the Grey Boss Smiley Walker, but with a powered up attack. Much like the Grey Boss Smiley Walker, it has a stronger counterpart in Cavern 2, the White Boss Skull Bat. Melee characters are sometimes relatively useless against this boss unless they are used as bait to bring it down. Slowing the boss down will help bring this boss to a quick finishing. Thunder type weapons will also help defeat it.