The "Million-Missiled Meddler", Killacopter, is the sub-boss of Mission 5 in Double Dragon Neon. It is a helicopter that drops enemies and launches several types of missiles. After many enemies are defeated, it will retreat.
The Killacopter reappears in Mission 6, where it attempts to push the player into a pit with the wind of its blades and is fought again. It uses a new missile attack and turns upside-down to cut the player with its blades. After the battle it retreats again. It appears for the last time at the end of Mission 6 to assist the boss Giant Tank. When the Giant Tank is defeated, its main cannon will inadvertently blast the Killacopter and destroy it; the Giant Tank is then destroyed by the falling Killacopter wreckage.