Daikun

Daikun (ダイクン) is a koala who is a member of the Coconut Crew, a youth association formed in Southern Island.

History
Daikun lives in an island all by himself. Sometime prior to the events of Sonic Rush Adventure, Daikun seems to know Marine the Raccoon when she was younger. When Sonic the Hedgheog, Miles "Tails" Prower, Blaze the Cat and Marine arrived at Daikun's island, Daikun was not pleased at first with the heroes' stepping in to his island when they thought that the island was deserted, with Blaze stating that Daikun thinks that the heroes are his enemies until he recognized Marine. As Marine didn't recognize Daikun, he assumes that Marine has forgotten about him. He helps the heroes that an island to the west of him makes some sort of a strange sound. Daikun thinks that the island is shaking or at least something suspicious is going on. After the heroes thanked Daikun and head off, Marine asks Daikun to come back to Southern Island at some other time.