Between the Doors

Between the Doors is a mission that can be unlocked by dragging the 3 keys obtained from these three missions from your inventory to the key slots on Bloon Citadel. It opens and shows a preview of the track Corridor. You then have the choice to begin the mission or exit mission. Exiting the mission will close the door up again, while accepting will begin your mission.

Your goal is to complete rounds 1-100 on apopalypse mode, and fight the boss on round 101. Round 50 is replaced.

You start off with $1000, a 3/3 Attorney Monkey, a 3/3 Miner Monkey and a 3/3 Fishing Monkey. There are cutscenes in this mission, as with all missions from the Knowledge is Power (Special Mission Pack).