M.R.B

M.R.B. stands for Music Resistant Bloon. It is an MOAB class bloon that is resistant to music.

Trivia

 * It has 500 health for its first layer. Spams 64 ceramics after layer popped. Ceramics have the same properties.
 * It is immune to music, so jungle drums, MIB call to arms, MOAB assassins etc. with high sound effect or musical notes dosen't work on this blimp.