Bloons Tower Defense 5

Differences from BTD4
The tower upgrades for the game must be unlocked with XP which only that certain tower can gain.

There are now a total of 8 upgrades per tower (2 sides of 4 upgrades), instead of the previous game which only had 4.

There is also a new bloon named the Z.O.M.G., which has replaced the B.F.B. as the most powerful bloon in the game.