Sonic Speed Monkey

Sonic Speed Monkey (音速猿, Onsoku Saru) is a species of monkeys moving with sonic speed.

Appearance
A small white monkey with large head and big eyes.

Plot
The Sonic Speed Monkey stole Leo's camera while he was at a dinner. While Leo was chasing it, they were caught in a gunfight between a criminal and the police. The monkey passed out from the shock. Later the monkey along with Leo was brought to Libra's base. When the gate that Femto put opened, everyone though that the monkey was the gate and tried to catch it. Chain went after it, but was only able to keep track of the monkey and wasn't able to catch it. When Leo got the chance to kill the monkey and close the gate, using his eyes he saw that the gate was actually a flea on the monkey and crushed the flea. Femto was shocked as he was expecting that they will kill the monkey, which would have opened the gate, instead of closing it.