Marine the Raccoon is a hyperactive female Mobian raccoon and sailor. She's a resident of Seagull Island in the Sol Zone, is a lover of excitement and constantly seeking adventures. At some point in time, Marine the Raccoon managed to obtain Mobius Prime's green Chaos Emerald, though it was stolen not long after by the robot Johnny. Marine then worked along side Sonic the Hedgehog, Miles "Tails" Prower and Blaze the Cat to retrieve it. Months later, Marine and Blaze rescued Shadow the Hedgehog and worked with him to destroy Metal Sonic. In Sonic the Hedgehog: The Next Adventure, she is a main protagonist and helped Sonic win the feud against the Forker family.