Supply Drop Ability is the final upgrade on Path 2 for the Sniper Monkey in Bloons Tower Defense 5, costing $10200 on Easy, $12000 on Medium, $12960 on Hard and $14400 on Impoppable. When used, this ability summons an Operation: Dart Storm plane (which does not attack) to drop a small crate with a banana symbol on it, identical to the crates produced by the Banana Research Facilty. It contains a random amount of money between $500 and $1500; the player must hover their mouse cursor over the crate to collect the money from the crate. When first purchased, this ability must go through a 60-second chargeup before use, probably to prevent placing x/4 Snipers, selling them, and buying them to use the ability again and again. However, the cooldown for the ability is also 60 seconds.
As the money that can be earned from the Supply Drop Ability in a round is not fixed, longer rounds like Freeplay in combination with this ability will earn more than Banana Farms.