The Kangaroo boxer is a special agent that costs $100 Monkey Money and punches bloons rapidly. It seems to be capable of attacking around half the speed that an unupgraded Super Monkey throws darts at.
Kangaroo Boxer Pro
The Kangaroo Boxer Pro is obtained after placing it 40 times. The pro version allows it to detect camos and pop leads as well as dealing a lot more damage to ceramics and MOABs .