Hero Booster

Level 3 Sauda with a Hero Booster confirmation messagebox

The Hero Booster is a game mechanic in Bloons TD 6 that allows the player to spend Monkey Money to instantly level their Hero up to level 10. The cost depends on the Hero's current level, lowering at higher levels, and the player cannot purchase it if the Hero is already at level 10 or greater.

Hero Boosters are disabled in modes and challenge rule sets where Powers are disabled, including CHIMPS, Sandbox, Rogue Legends, Boss Rush, and competitive events.

Costs

Level	Cost	Cost/XP ratio
1	500	86.56
2	475	90.74
3	450	94.76
4	425	97.98
5	400	99.45
6	350	104.29
7	275	113.89
8	200	115
9	100	136.2

Update history

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Version 19.0

• No longer an in-app purchase, instead costing Monkey Money depending on the Hero's level
• Now capped at level 10 instead of fully upgrading the Hero