A picture of Roysten, the pet goldfish in his bowl.
|Series Appearance||Banjo-Kazooie, Banjo-Tooie|
|Pages||Banjo, Spiral Mountain|
 In Banjo-Kazooie
Roysten lives inside a fishbowl inside Banjo and Kazooie's house. He repeatedly bumps the glass, trying to get out of his fishbowl. After Banjo and Kazooie finish Grunty's Furnace Fun in Banjo-Kazooie and rescue Tooty; Banjo, Kazooie, Tooty, Mumbo and Bottles celebrate at Banjo's house by eating Roysten alive through Mumbo Jumbo cooking him on a grill. Somehow after the party, he is back in the fishbowl again.
 In Banjo-Tooie
Banjo and Kazooie find Roysten underneath a boulder a short distance away from Banjo's house. Roysten ends up telling Banjo and Kazooie that he had fallen off the grill and ended up underneath the boulder (even though he ended up back in the fishbowl in Banjo-Kazooie, after being barbecued. In the previous version, Banjo-Kazooie, there also was no sign of a boulder being near the grill). Banjo and Kazooie free him by using the Bill Drill on the boulder, which breaks the boulder into many small pieces. Roysten then asks Banjo and Kazooie to be put in the moat surrounding the Spiral Mountain. When he is brought to the moat, he teaches Banjo and Kazooie a way to swim faster (pressing A and B at the same time repeatedly while swimming underwater).