Ion Cannon

The Ion Cannon is a mechanical tower that creates plasma bolts from the free argon in the atmosphere (It can also use helium, which is how it works in space. Problem?). It then fires them out at a rate similar to that of a sniper monkey. Each bolt pops 5 bloons, and can pop lead and frozen bloons. Cost: $770

Path I

 * More Plasma: Fires bigger bolts that charge slower, but pop double the bloons! Cost: $260 (Speed = Sniper Monkey ÷ 2)


 * Efficient Ionizers: Increases the rate of fire again for the cannon! Oh, and the bolts can go much further, and the cannon can target bloons much further away! Cost: $680 (Speed = 3-X Dart Monkey; Range = 50% of screen)


 * Ionic Booster: Fires a second bolt after the first one, popping five bloons per shot, just like the original! Cost: $1700


 * Nuclear Fusion: The fusion of free hydrogen in the air allows for the production of a powerful jet of plasma, vaporizing three layers off of twenty bloons! Cost: $2700

Path II

 * Super Heat: Intense heat melts bloons that get too close to the tower, popping them every few seconds for ten seconds! Cost: $260


 * Cooling Equipment: Advanced chillibrators reduce the risk of overheating, increasing the rate of fire! Cost: $510 (Speed = 0-0 Monkey Ace)


 * Drip, Drip, Drip...: Oh, no! Your chillibrators are leaking! No matter. The liquid hydrogen puddles out on the track at a rate of 4 per round, and each puddle freezes one bloon for ten seconds!


 * Sungrazer Plasma: This stuff rips apart the ions in the atmosphere, leaving a short trail popping bloons rapidly! Solar Burst: Barrages the bloons with bursts of 10 bolts for 20 seconds! Cooldown: 60 Seconds Cost: $4250 (Speed [ability] = 1-3 Monkey Ace)

Trivia

 * Nuclear Fusion is a reference in name only. It acts similarly to the Laser S from Fraxy.
 * Special thanks to User: BloonsMaster for helping me with the upgrades!