Supply Drop (BTDB2)

"Supply Drop Ability: drops a crate full of cash. Regular attack also damages Lead Bloons and increases Shrapnel popping power."

- BTDB2 description

Supply Drop is the 4th upgrade on Path 2 of the Sniper Monkey in Bloons TD Battles 2. It is similar to its BTD6 counterpart, except much stronger. It has only 1/2 initial cooldown, drops crates worth $2000 cash, and the upgrade costs less. Cooldown has also been greatly reduced, down to 40 seconds cooldown.

It costs $5800, and is unlocked with TBA XP.

Summary
Supply Drop's dual offense and income generation makes it incredibly strong at building a solid income growth, particularly whenever the game is set to play at a stalemate. Tapping the ability as soon as is ready gives essentially an equivalent 300 eco. The main draw with this upgrade compared to other options is being able to use other Sniper upgrades as well as not needing to rely exclusively on eco to grow income.

When compared to Jungle's Bounty and Support Chinook, the other two income-based abilities, Supply Drop has the least efficient income per tower but is the most space-efficient, while also having a small amount of grouped popping power, including camo-popping, to slightly offset its weak cash generation.

Tips

 * 0-4-2 does a better job at cleanup, and is cheaper to buy, but 2-4-0 is stronger and deals with stronger bloons better. However, most of the time Supply Drop is used in conjunction with other towers, given the limited offense of Supply Drop.