Shipwreck is a Special Mission in Bloons Monkey City. In this mission, every tower except the Monkey Buccaneer costs double their original price. Players must defend against 22 rounds (24 in second city) of stepped up bloons (Round Ramp). There are four whirlpools located inside looped parts of the track. The whirlpools can pop all types of bloons with an activated ability which acts like a 0/0 Bloonchipper. Players earn $6000 and 500 XP upon completion, along with 50 (with an extra 5 if no lives are lost, 2 on mobile).