| “ | RBE means Red Bloon Equivalent and tells you how many bloons you will have to pop in the current round. | ” |
| ~ Round 5 in Bloons TD 4 |
The RBE display before Round 1
The Red Bloon Equivalent (RBE) of a Bloon or Round is total damage required to completely pop that Bloon or group of Bloons (for instance 4 green bloons require 12 damage to completely pop all of them, equalling RBE 12 (3 RBE each)). Though the concept can be applied to all BTD games, RBE was formally named in Bloons TD 4. So, for example, in the picture to the right fourteen pops are required to pass that particular Round. It also appears in Bloons TD 4 Expansion and Bloons TD 5. The lowest RBE of a round in BTD4 is 11, the highest is 2881116 on Flash (Round 250 - no rounds were programmed after this). The final round of BTD4 has 999 B.F.B.s, and it is nearly impossible to survive, even if your entire screen is filled with Sun Gods, meaning Operation: Dart Storms are a must.
In BTD5, all Freeplay rounds have a random RBE past round 85; the highest non-freeplay round has 62440 (Round 84, though Impoppable Round 85 has 83,280) while the lowest has 3 (Round 24).
RBE in Bloons Tower Defense 5.
In BTD6, RBE is not directly mentioned as a statistic, but there are some towers that involve RBE, such as Avatar of Wrath's damage scaling, and the triggering of the instakill grapple from Great White and above (notably Megalodon versus BADs). However, there is one mention of RBE in-game in BTD6: the description of the 
Big Traps Support Monkey Knowledge reads "Bloon Trap can hold up to 530 RBE.".
RBE Values for each round[]
See Rounds for more information.
Trivia[]
- The lowest round RBE (as of now) is 3, the green camo on round 24 in Bloons TD 5.
- The second lowest RBE (as of now) is 11 on round 24 in BTD4 as mentioned above.
- The highest non-randomized round RBE (as of now) is 2,881,116 on round 250 in BTD4; however, this is only available in freeplay.
- In Bloons TD 4, the RBE of the Camo Bloon in Round 24 should be 11, yet the in-game RBE says 9.
- In BTD5, rounds 21 and 36 are the only rounds that consist entirely of Pink Bloons.
- In BTD5, some Daily Challenges have a modified RBE.
- RBE is sometimes confused to stand for Rate Bloons Explode.
- Avatar of Wrath is notable for having its upgrade centered around this mechanic.
- In BTD6, the only known mention of the term "RBE" is within the description for the Big Traps Monkey Knowledge point.
- In Bloons Adventure Time TD, Sai the Shadow's caltrops internally have an allocated "rbeTotalDamage" they can deal, in this case, each caltrop deals 10 RBE and can only benefit from debuffs.
See Also[]
- Pre-Round Comment if you're wondering what the comment is before the rounds, you will be dedicated to this page.
- Rounds if you want to know more about the rounds' RBE.
- Bloons TD Battles for an exact RBE list for the game.
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