During the beginning of Driver’s License Lunacy, when you are controlling Goku and have both Gohan/Piccolo as support characters, you are supposed to return to Goku’s house to advance the story. Instead, open your world map and press Triangle/Y to find the Off-Earth Area. Here, you can visit King Kai’s Planet and get this Substory from Bubbles. He seems a little down, with King Kai chiming in and saying he is likely hungry. He tasks you with finding some fruit for him, Cosmic Bananas to be exact. Not knowing where to get them, Goku uses Instant Transmission to go to Bulma to find out that the bananas are hard to come by, as they only grow in a jungle.

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(1 of 2) Look for the purple orbs in the swampy area

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Look for the purple orbs in the swampy area (left), There are more than the ten bananas you need for the quest (right)

Open your world map and head for Blake Bog in the Central Plains Area. You’re going to the swampy area, with a lot of trees (the blue marker should be right where you come into the area). When the map changes from the blue marker to a general circle, you’ll be able to start finding the bananas for Bubbles. You will need a total of 10 Cosmic Bananas and you are looking for the familiar purple orbs. None of them are really hidden and there seems to be more than you need, but don’t forget to use your Ki-searching ability, as that will make the orbs appear larger. Once you have gathered the ten bananas, you will automatically return to King Kai’s Planet. Speak with King Kai to set the rest of the substory in motion, essentially finishing it. Note that Bubbles will also give you a piece of Refined Gold.