Robot War

''After the victory of towers, the balloons come back, and plan to take revenge on the towers by going to the snowy island of Club Penguin and teamwork with robots to destroy the towers. Your duty, as a secret agent, is to destroy the balloons and the robots once and for all, but can you do it?''

Robot War is a secret mission in Bloons Tower Defense, and the final secret mission of Bloons TD. It takes place at the Robot HQ. The balloons, as the briefing to the mission says, teamwork with the robots to destroy the towers and you have to stop them. It can only be playable by getting the secret Rainbow Puffle Tower.