Marsipal is one of the main characters in Zero Hero. He is an Arachnichimp.
He looks exactly like Spidermonkey, but with no Omnitrix.
He is warm-heated and kind, as seen when he decided to help Zero. He cares for his friends and will protect them no matter what.
Like any Arachnichimp, he has the power to shoot webs from his tail and has enhanced agility. He also has strength higher than the average human.
Every episode of Zero Hero from Adventure Begins Now and on.