On Fire! is a set of three bonuses in Bloons Pop!. They are granted as rewards for clearing levels consecutively (or in a row) without failing. If the player quits a level with On Fire! active, the level is failed, and the bonuses are lost. If the player does not have all three On Fire! bonuses active, they can activate all of them for 400 Monkey Money.
The three bonuses are:
- Random Bloons will be turned into Bomb Bloons, Tack Bloons, Dartsaber Bloons, or Magical Bloons. (after just clearing 1 level)
- The player will be given one Super Monkey at the beginning of an attempt. (2 levels without failing)
- The player will be given one Mega Monkey at the beginning of an attempt. (3+ levels without failing)