Signal Flare (BTD6)

"Camo Bloons popped by flares lose their camouflage permanently."

- BTD6 description

Signal Flare is the third upgrade of Path 3 for the Mortar Monkey in Bloons TD 6. Explosions from Signal Flare can decamo and damage Camo Bloons, and each explosion produces invisible secondary flares that decamos up to 80 Camo Bloons each on a wide radius, similar to a Shimmer. Each flare has a blast radius of 50 (70 with Bigger Blast). In essence, this grants the Mortar Monkey camo detection. Signal Flare can also decamo Camo Blacks and Camo Zebras, despite being unable to damage them by default. It only decamos DDTs if given Paint Stripper MK.

It costs $595 on Easy, $700 on Medium, $755 on Hard, and $840 on Impoppable.

Costs

 * Updated as of Version 29.4

Summary
Signal Flare is useful for combined damage and decamo for an affordable price. The infinite range of the Mortar Monkey also makes it handy on maps with lots of obstructions that can block Line of Sight or with poor central placement. It is especially useful as a cheap counter against the camo leads on Round 59.

Because of its slow attack speed, most other sources of camo detection are generally preferred over this when available.

Tips

 * Signal Flare can be used to strip camo from stronger Bloons, such as Camo Rainbow Bloons, and Camo Ceramic Bloons.
 * 0-2-3 is generally the better crosspath for the Signal Flare, as it allows the Mortar to catch faster bloons easier, although Signal Flare generally shouldn't be relied on for decamoing fast bloons anyway.
 * Try to target the Signal Flare Mortar onto the center of a track bend, which should maximize potential for catching bloons.

Trivia

 * Signal Flare is one of two upgrades where a Tier 3 upgrade is cheaper than the base cost of the tower, the other being Primary Training.
 * Bomber Ace used to fit under this criteria, but was no longer the case as of Version 7.0, when it gained a price nerf to compensate for its large damage buffs.