Akiki is a tomboyish Ukiki and the niece of the mayor of the Jungle Area, whose name is Ukiki. In Mario Party Advance, she believes that her uncle has been kidnapped and asks the player and Shroomlock to find him. The message Ukiki has left Akiki read, "bIg teAM cAT THElf bLAKE." - the capital letters spell "I am at the lake," referring to Loch Dorrie. Once the player finds Ukiki, he tells the player that he faked his kidnapping, wanting to play a joke on Akiki.
Akiki's name first appeared on the scorechart for Mario Golf: Toadstool Tour, which was released two years before Mario Party Advance.