The Fieldsweeper is an infantry-fighting blimp sent by Apopalypse Bloon to seek and destroy the monkey's ambush forces in the Evershade Forest. It's a greatly modified M.O.A.B. with thick cladded 65mm steel armor, a much stronger engine, a custom logo, and 5 cannons on its head, resembling a crown-like system. It's controlled by Spikey Bloons.