Boxing Kangaroos

and were part of Condor's ninja animal team. The two kangaroos both wear boxing gloves and are both skilled in boxing which prevented Rock Lee from hitting them with his taijutsu. Though in the end, Lee managed to defeat the kangaroos and they went fleeing the from battle. After the group disbanded, the two kangaroos decided to become summons so that they can help other shinobi, and also to be able to display their skills with boxing for others. They are Urusai's personal summon and were the last kangaroos to make the contract with the Third Tobikage.

Personality
Akaken and Koken have very similar personalities. Both have a way of not talking much and enjoy spending their free time practicing boxing. Koken is the most introverted of the due, and Akaken likes to show his skills to any strange, whether human or kangaroo.

Abilities
The Kangaroos are experts in one of the rarest arts of taijutsu, boxing. They work in perfect sync, while the great Kangaroo distracts the enemy with several strong punches, the little one comes for a short moment out of the bag to hit the enemy in his unguarded areas. The two together are strong enough to engage a natural taijutsu specialist like Rock Lee for quite a long time.

Trivia

 * They were the part of the circus act in Naruto the Movie 3: Guardians of the Crescent Moon Kingdom.