Vortex Cannon

The Vortex Cannon is a tower similar to the Bomb Shooter, but instead of damaging bloons, it blows them 1/8 of the track distance back. The projectile it shoots is a ring of smoke(even though it is invisible in real life unless you have smoke in the cannon itself). It costs $360 on medium and has some interesting upgrades. It fires once every second and has the range of a 0/0 Ninja Monkey.

Path 1:
Compressed Air ($350)

The Vortex Cannon now blows back bloons even farther(1/5 track length).

Quicker Blasts($350)

The Vortex Cannon fires once every half second.

Icy Air($800)

The Vortex Cannon now freezes bloons because of the chilly air put inside.

Dry Ice Gas($1600)

The Vortex Cannon becomes a Dry Ice Gas Launcher and freezes bloons, pops 2 layers and blows them back.

Path 2:
Forceful Blasts($400)

The Vortex Cannon now has the range of a 1/x Ninja Monkey.

Ultrasound($1000)

Allows the Vortex Cannon to detect camo.

Shockwave($1600)

The Vortex Cannon stuns all bloons for a brief moment after they are blown away.

Massive Barrel($6000)

The Vortex Cannon can now blow back MOAB class bloons 1/16th of the track back, and it gains the Earth-Shattering Shockwave ability which stuns all bloons on screen for 2 seconds, blowing them back to the start, but has a cooldown of 120 seconds.