Retreat Bloons

Retreat bloons are bloons that start at the exit and leave at the start. M.O.A.B. class bloons never are retreating bloons and neither are any harmless bloons. Starting at round 35 bloons have a 25% chance to be retreating bloons. If 70 Bloons leak, those 70 will all come out of the exit. Since they have no evil intent they have a small speed boost