Alternate Upgrades

If you don't like the current upgrades, then you can get alternate upgrades for your towers by pressing the button that says "Alt" on their menu. You can switch between normal and alternate upgrades whenever you want. Also, you can have a tower that is normal 5/x/x and also a tower that is alternate 5/x/x. However, there are no alternate 5/5/5 upgrades.

Path 1
Glued Darts - Darts slow bloons they hit. Cost: $350

Stunning Darts - Darts stun bloons for 1 second. Cost: $500

Stunplosion - When bloons are stunned, bloons near them are stunned for a second as well. Cost: $1000

Longer Stun - Bloons are stunned for 3 seconds and bloons near them are stunned for 2. Bloons are slowed much more now. Cost: $2500

Infinistun - Darts explode into 5 more stunning darts and those explode into 3 more stunning darts. All darts stun bloons for 5 seconds. Bloons near them are stunned for 3. $10000

Path 2
Big Darts - Darts are 2x as big. Cost: $200

Bigger Darts - Darts are 2x as big as before, and pop 2 layers off of bloons. Cost: $500

Special Dart - Sometimes throws a dart that pops a bloon in 1 hit, even if it's a ceramic or emerald bloon. Does not work on blimps and bosses. Cost: $1000

Huge Dart - Huge Dart Ability: Throws a giant dart that flies around the screen doing 1 damage to each bloon it touches. Lasts 15 seconds. Cooldown: 45 seconds. Cost: $3000

Omega Dart - The giant dart lasts 30 seconds and does 5 damage to each bloon it touches. The cooldown is shortened to 40 seconds. Cost: 11000

Path 3
Light Darts - Throws 25% faster and darts have 2 pierce. Cost: $500

Status Removal - Removes camo and regen properties from bloons (only bloons, not MOAB class bloons or bosses). Cost: $750

D e g  r  o  w  t  h                                  - -  Gives bloons the degrowth property (which makes them lose a layer every second). Cost: $1250

Super Status Removal - Removes fortified, teleport, and armored properties from bloons (but not MOAB class bloons). Cost: $2000

MOAB Status Removal - Removes camo, regen and fortified property from MOAB class bloons! Cost: 20000