Minokoala is one of the five Demon Guards of Impel Down. He is an "awakened" Zoan Devil Fruit user that ate a fruit that turns him into a koala.
Impel Down arc
Minokoala first appeared behind Impel Down's main entrance with Sadi-chan when she told the Marines not to intervene when they tried to gain access to the stronghold. Later he, along with the other Demon Guards, is sent to Level 4 to stop the breakout but is defeated by Monkey D. Luffy. He is then woken up by Sadi-chan and sent up to Level 1 but is defeated again by Luffy.
Two Years Later
After the timeskip, Minokoala is seen with the other Demon Guards with their new member: Minochihuahua.
Abilities and Powers
As one of the Demon Guards of Impel Down under Sadi-chan, Minokoala is in charge of torturing and maintaining various prisoners. He fights with spiked brass knuckles on each hand.
He has eaten an as-of-yet unnamed Zoan type Devil Fruit that allows him to become a koala. Because he is an "Awakened Zoan", he is able to recover rapidly even after suffering high amounts of damage.