The Gup-B is a shark-styled Gup with one seat. Known for its fast speed and acceleration, it is Kwazii's favorite Gup. He mainly uses it for almost all the missions the Octonauts go on.


  • Has an eject button to help Kwazii escape in emergencies.
  • Has a turbo-button for Turbo power.
  • Has retractable pectoral fins and moving tail fins for flight.
  • Has a tiger shark camouflage.


  • Some fish (like the Humuhumunukunukuapua'as) mistake the Gup-B for a shark and get scared.
  • Kwazii once said that he painted the shark teeth on the Gup-B himself.
  • The Gup-B obtains retractable pectoral fins and tail, as seen in The Flying Fish.
  • Like the Gup-D, outside of flying fish mode, there is no visible way for the guy to move forward.