Operation: Dart Storm is the third upgrade on the second path in BTD5. It allows the ace to shoot faster and shoots out 16 darts with each shot instead of 8. Darts are considerably sharper too, gaining extra pierce.
It is very useful for thinning out a large number of bloons during the later Rounds though it's not too effective against Moab class bloons. It is best used to get rid of large quantities of bloons up to the Rainbow range.
In Bloons TD 5, it resembles an F-117 Nighthawk, except with just one tail fin. This makes it more fitting compared to it's BTD4 appearance as F-117s were actually used in Desert Storm. However, in the official art, the plane continues to appear as a B-2 Spirit.
When using the Supply Drop Ability, a plane similar to the Operation: Dart Storm (albeit slightly darker) will come and drop a crate containing $500 – $1500.
It is just as effective as one of the planes launched by the Aircraft Carrier.
With Sharper Darts added with Rapid Fire, it feels slightly more powerful than in BTD4 because it attacks as fast as the Heli Pilot and each dart has 7 more popping power than a 1/3 Monkey Ace.
There is a bug in BTD5 where the Monkey Ace, when upgraded to this, would always face to the right of the screen.