This article is about Heroes in Bloons TD 6 and Bloons TD Battles 2. For the towers that are sometimes called heroes in Bloons Adventure Time TD, see Character. For the Heroes in Bloons Pop!, see Hero (Bloons Pop!). For the Heroes in Bloons Card Storm, see Hero (BCS).
Icon of the original four Heroes in BTD6

Heroes are a tower category in Bloons TD 6 and Bloons TD Battles 2. Unlike other towers, the player is only allowed to choose one Hero to use in a game, and the player cannot place multiple copies of that Hero. Rather than having upgrades, Heroes gain XP at the end of each round and level up upon reaching certain thresholds, increasing their strength and/or unlocking new Activated Abilities, up to level 20.

In Battles 2, Heroes have Hero Alts, which are sidegrades of Heroes with different playstyles.

Experience

"Hero XP" redirects here. For the Hero equivalent of Tower XP in Bloons TD Battles 2, see Hero Point.

Heroes gain XP at the end of each round. The amount depends on the round, with higher-numbered rounds giving more XP. Most levels take more XP than the previous level. Since the amount of XP earned per round and amount of XP it takes to level up both increase over time, the number of rounds it takes for a Hero to level up stays roughly the same throughout the game if placed on the first round. If placed later in the game, Heroes will initially level up faster than normal due to the rounds giving more XP relative to their level, but it normalizes as the level approaches the usual value. At any point, the next level can be unlocked instantly by spending cash, at a rate of $1 per 1 XP.

XP curves

All Heroes have an "XP curve" that determines how much XP each level requires. The curve is a multiplier to the XP requirement of each level (rounded half up), so a higher multiplier means the Hero levels up more slowly.

In Battles 2, there are two types of XP curves that Heroes can have. Some Heroes have a different curve that has higher XP requirements at lower levels but lower XP requirements at higher levels. All Hero Alts except Fateweaver Adora and Beetienne have the same XP curve as the Heroes they are derived from.

XP curves in Bloons TD 6
Curve Hero(es)
×1.0 Quincy, Gwendolin, Striker Jones, Obyn Greenfoot, Etienne, Geraldo
×1.425 Ezili, Pat Fusty, Admiral Brickell, Sauda, Corvus, Rosalia
×1.5 Benjamin, Psi
×1.7 Captain Churchill, Adora
XP curves in Bloons TD Battles 2
Curve Hero(es)
×1.0 (type 1) Quincy
×1.15 (type 1) Pat Fusty
×1.5 (type 1) Captain Churchill, Adora, Ezili
×1 (type 2) Gwendolin, Obyn Greenfoot, Striker Jones, Benjamin, Agent Jericho, Bonnie, Beetienne
×1.06 (type 2) Etienne
×1.2 (type 2) Fateweaver Adora

Bloons TD 6

The amount of Hero XP earned at the end of each round is the same as player XP and tower XP outside of freeplay and Knowledge modifiers. Levels 12, 14, and 19 take less XP than the previous level, and level 20 takes less XP than level 18. Like player and tower XP, Heroes gain more XP and level up faster on higher map difficulties; 1.1× faster on Intermediate, 1.2× on Advanced, and 1.3× on Expert. If multiple Heroes are in play (via Co-op or the Bloons TD 6 Birthday Party quest), the XP earned on each round is divided evenly among each Hero. Heroes gain more XP with the following Monkey Knowledge:

This chart shows the amount of XP each level takes and the number of rounds it takes for a Hero with an XP curve of ×1 to reach those levels.

Note: the number of rounds to level up assumes the Hero was placed on round 1 and there are no other Heroes on the map.
Level XP required Rounds to level up Rounds to level up w/     
Beginner Intermediate Advanced Expert Beginner Intermediate Advanced Expert
2 180 (180) 3 (3) 3 (3) 3 (3) 3 (3) — — — —
3 460 (640) 4 (7) 4 (7) 3 (6) 3 (6) — — — —
4 1,000 (1,640) 5 (12) 4 (11) 5 (11) 4 (10) 8 (8) 8 (8) 7 (7) 7 (7)
5 1,860 (3,500) 6 (18) 6 (17) 5 (16) 5 (15) 6 (14) 6 (14) 6 (13) 5 (12)
6 3,280 (6,780) 7 (25) 7 (24) 7 (23) 7 (22) 7 (21) 6 (20) 6 (19) 7 (19)
7 5,180 (11,960) 7 (32) 6 (30) 6 (29) 6 (28) 7 (28) 7 (27) 7 (26) 6 (25)
8 8,320 (20,280) 8 (40) 8 (38) 8 (37) 7 (35) 8 (36) 7 (34) 7 (33) 7 (32)
9 9,380 (29,660) 7 (47) 7 (45) 6 (43) 7 (42) 6 (42) 6 (40) 6 (39) 6 (38)
10 13,620 (43,280) 8 (55) 8 (53) 8 (51) 7 (49) 8 (50) 8 (48) 7 (46) 6 (44)
11 16,380 (59,660) 7 (62) 6 (59) 7 (58) 7 (56) 6 (56) 6 (54) 7 (53) 7 (51)
12 14,400 (74,060) 5 (67) 5 (64) 4 (62) 5 (61) 5 (61) 5 (59) 4 (57) 5 (56)
13 16,650 (90,710) 5 (72) 5 (69) 5 (67) 4 (65) 5 (66) 5 (64) 5 (62) 4 (60)
14 14,940 (105,650) 4 (76) 4 (73) 4 (71) 4 (69) 4 (70) 3 (67) 3 (65) 3 (63)
15 16,380 (122,030) 4 (80) 4 (77) 4 (75) 3 (72) 3 (73) 4 (71) 4 (69) 4 (67)
16 17,820 (139,850) 4 (84) 4 (81) 3 (78) 4 (76) 4 (77) 3 (74) 3 (72) 3 (70)
17 19,260 (159,110) 4 (88) 4 (85) 4 (82) 4 (80) 4 (81) 4 (78) 4 (76) 3 (73)
18 20,700 (179,810) 4 (92) 3 (88) 4 (86) 3 (83) 3 (84) 3 (81) 3 (79) 4 (77)
19 16,470 (196,280) 3 (95) 3 (91) 2 (88) 3 (86) 3 (87) 3 (84) 3 (82) 2 (79)
20 17,280 (213,560) 3 (98) 3 (94) 3 (91) 3 (89) 3 (90) 3 (87) 2 (84) 3 (82)

Hero Booster

Main article: Hero Booster

On some modes, Heroes can be instantly leveled up to level 10 by spending Monkey Money. Hero Boosters cannot be purchased for Heroes that are already at level 10. The   cost is dependent on the current level of the hero and varies between levels.

Costs for hero boosters in Bloons TD6
Hero level   Cost
1 $500
2 $475
3 $450
4 $425
5 $400
6 $350
7 $275
8 $200
9 $100

Activated Abilities

Most Heroes have at least two Activated Abilities: one unlocked at level 3 and one unlocked at level 10. Some Heroes have a third ability unlocked at level 7. In general, the level 3 ability is weaker and has a shorter cooldown, the level 10 ability is stronger and has a longer cooldown, and the level 7 ability is situational. All Heroes' level 10 abilities are enhanced at level 20. Geraldo is the only Hero to lack any abilities.

List of Heroes

Bloons TD 6

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Bloons TD Battles 2

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Template:BTD6 mk list by category

Template:BTD6 achievement list by name