Gup-A - a multi-purpose vehicle and is Captain Barnacles' favorite. Its speed is moderate, but it has a turbo booster that can make it go almost as fast as the Gup-B. It is used in almost all missions. It's also been seen with other disguises in the toys and the episode The Decorator Crab. It's based on an angler fish.

Gup-B - 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 a lot of the missions the Octonauts go on. Other times, he will use it to race other creatures who love a good challenge. In some episodes, some creatures mistake it for a real shark and get scared. It includes a tiger shark disguise, flying fish mode, and a turbo booster.Drooping lamp from the top of the hull to distract or lure creatures and light the path when the waters get dark.

The toy has great details in the inside, all the same color as the ship but it shows switches and screens as well as the Octonauts logo. I have no idea why they decided to put Captain Barnacles in a red wet suit but my daughter does not seem bothered by it. The toy can go in the bath tub as well (watch out, the angler fish sinks and is small enough to go down some drains!) and my daughter LOVED playing with it in the tub. It seems to rinse clean pretty easily but it does take awhile to dry so we are not letting her use it in the bath all the time as we don't want it to mold. Overall she loves to play with it and was thrilled to receive it, it's nice that it comes with the hook and net in addition to the ship and two figures (Captain Barnacles and the Angler fish) - makes it ready to play pretend right away! Gup-T - It was built after a sea pig, and is a rescue rover. It is probably going to be used for seafloor or land traveling hence the wheels.

Gup-Z - a Gup in the movie, The Ring of Fire. It's A-5, which means almost everyone can use it. The trailers state that it is the ultimate Gup used to rescue sea creatures from erupting undersea volcanoes. It is built to look like a Mantis Shrimp or a Vent shrimp.. The 3 parts are: Vent shrimp, Mantis Shrimp and the 5 smaller Gups. Gup-F - a pedal-powered Gup, based on an X-ray fish. It was the first Gup Tweak ever built. Although it is also the slowest one, it was helpful when there was no other Gup to use, like in the episode " The Speedy Sailfish". It was destroyed by the first part of a hurricane in the episode " The Artificial Reef". It was then turned into an artificial reef to protect the creatures who lived in a small reef which was also destroyed by the hurricane.

Gup-J - a relatively new Gup that is kind of like a hydro scooter. Only the toy Gup Speeder has been made. Theory has been set to it appearing in the series. Gup-F is very similar to the Gup-E in its design has both Gups look like each other (excluding size). The only differences include no glass windshields and a peddle powered engine, kinda like the way the letter F looks like the letter E, except it only hs two horizontal lines. Gup-Y - an upcoming Gup. It is modeled after the yeti crab. It may be a deep-sea excavation Gup that may work around the Deep Sea Octolab in the Mariana Trench. Not much more is known about it. The toy has already been made. Gup-D - a medium-sized Gup with retractable arms and legs. It's designed to do construction work. With its legs out, it looks like a crab, but with its legs in, it looks like a manta ray. The Gup-D is Tweak's favorite Gup. Also, this Gup is probably the one Shellington is the worst at piloting. He has crashed it three times.Gup-W - a Gup that seems to be a large mobile hospital for Peso. The Gup-W has first been released in animation form in Season 5 and in a feature-length film. Also due to Octonauts and the Great Barrier Reef, we have learned that it has some medical Octo-bots, the Nurse-bot, and the Bandage-bot. Inside the mouth of the Gup-W, there are bubble filters and an entrance/exit for the Gup-P.