Sky Shredder is the final upgrade in Path 1 for the Monkey Ace in BTD6. It is a much more powerful version of Operation: Dart Storm. It blasts out 32 much faster darts at a time with a much faster fire rate, each dart dealing 3 damage. Its missiles from the Path 1, Tier-3 upgrade, Fighter Plane, do extremely high damage to M.O.A.B. Class Bloons, dealing 150 damage per missile with two missiles, enough to destroy the outer layer of a M.O.A.B in the earlier rounds. These missiles can also target and damage D.D.Ts, while the previous upgrades cannot damage DDTs due their Black Bloon properties. Sky Shredder additionally can pop Camo and Lead bloons. It costs $34,000 on Easy, $40,000 on Medium, $43,200 on Hard, and $48,000 on Impoppable.
As the Sky Shredder already has in-built camo detection, it is better off going for a 5-0-1 Sky Shredder, as Exploding Pineapples deals very little extra damage compared to extra +3 pierce from Sharper Darts. Centered Path rarely is useful for the Sky Shredder, as most of its popping power comes from puncturing bloons at the center of the map rather than around the center of the map.