Chlorine Triflouride Monkey

The Chlorine Triflouride Monkey throws quartz vials of ClF3 at bloons every second. It costs 2200 cash on Medium. The vials of ClF3 have a 60% chance of bursting, and if they don't burst, a heavy bloon(Leads, Ceramics, MOAB class bloons, anything similar) needs to crush it. If a ClF3 vial bursts, it will light every bloon including MOAB class bloons on fire forever in a 50 pixel radius, popping 1 layer per second. It has the same range as a 0/0 glue gunner. It has a stable bloontonium shield with a small slit in it to protect him/her from the ClF3, as well as give shields to every other monkey in its range. This causes the other monkeys to lose 10% range.

Path 1:
More ClF3 Vials($1600)

The Chlorine Triflouride monkey shoots 20% faster.

Harder Throws($2000)

The vials now pop 1 layer on hit.

Fragile Vials($2800)

The vials now burst every time, and split into 10 fragments.

Cluster Vials ($3400)

The vial now shatters into 6 vials, but the main vial doesn't ignite. The other six still shatter into fragments.

Path 2:
Compressed ClF3($1800)

The vials now explode in a 100px radius.

Clear Shields($2400)

The Chlorine Triflouride Monkey infuses glass with stable bloontonium, giving him more visibility. It gives him 10% more range and negates the range penalty the other monkeys get.

Bionic Arm($3600)

The Chlorine Triflouride Monkey now throws 4 times faster, but stops attacking every minute to recharge his arm. This takes 10 seconds.

Chlorine Triflouride Burst($4200)

The ClF3 Monkey gains the ability ClF3 Burst, which throws 50 vials at once, but makes him recharge. Cooldown: 1 minute

Trivia
ClF3 is a real chemical and can set nearly everything on fire, including concrete. It is extremely dangerous and is rarely used. This is the reason it can set MOAB class bloons on fire.