Sharper Darts (BTD6)

"Darts can pop 8 Bloons each."

- BTD6 description

Sharper Darts is the first upgrade of Path 3 for the Monkey Ace in BTD6. It increases pierce of darts from 5 to 8, and bombs gain +12 pierce.

It costs $425 on Easy, $500 on Medium, $540 on Hard, and $600 on Impoppable.

Summary
Sharper Darts adds bonus pierce for the Monkey Ace, which for a low cost optimizes the pierce of the darts and any additional bombs. It isn't very useful in itself unless when paired with Operation: Dart Storm or Sky Shredder.

Tips

 * As an upgrade on its own, it is not as useful due to the Monkey Ace's decent pierce.
 * Dropped bombs from Exploding Pineapple as well as Bomber Ace and above pop up to 12 more bloons, somewhat useful in Race Events, but not nearly enough to make them superior over the reliable rate of bomb drops via Rapid Fire. Ground Zero ability remains unaffected by the Sharper Darts upgrade itself.
 * This upgrade provides Top Path Ace with extra pierce which is useful when hordes of bloons arrive and is better than the other crosspath, of which the Exploding Pineapple does almost nothing while Spy Plane is redundant for the Sky Shredder if good forms of camo detection are available.

Trivia

 * Sharper Darts is the only upgrade for the Monkey Ace that directly increases pierce for its darts for all upgrades. Even Sky Shredder darts do not gain bonus pierce. Spectre darts have an option that grants more pierce (via Lots More Darts), but not every crosspath combination has access to the Spectre upgrade.