Wattle Trees is a special mission in Bloons Monkey City. The player must pass 25 rounds with only Boomerang Throwers at their disposal, with a free one given every three rounds (unless on mobile version 1.1 - 1.2.1 due to a glitch). Upon completion, the player is rewarded with $1000 and the Enchanted Boomerang special item, which increases the Boomerang's popping power by 1 in all games. If the player already has this item they will receive 50 instead. Altogether, four Wattle Trees tiles will appear, two in Grassy Pass and two in Bloon Dunes. In Bloons Monkey City Mobile, which does not include Bloon Dunes, there will only be two Wattle Trees tiles.