The Ultimate Accessory is the nineteenth webisode of season 2.
The webisode starts off in Lucius Fox's Weaponomics class, with him announcing that the mid-term will be to create a high-tech gadget/accessory that would be useful in a fight. Bumblebee, watching the announcement, at first looks unsure, but quickly grins, having realized she has an idea.
In the lab, Bumblebee's using some welding equipment to make some spring-loaded boots, just as Harley Quinn approaches, with Bumblebee explaining how they can enhance jumping ability, with Harley expressing her excitement. Frost then walks by remarking that they're lame, explaining that Bumblebee's gadget would not go with her super-powers. Bumblebee then demonstrates her Weapon Homing device, by throwing it and then using her special homing glove, to attract it back to her in the gym. Bumblebee then shows off, as Frost approaches, explaining how Bumblebee doesn't need to wield a pole, remarking it won't enhance her powers. Bumblebee's next gadget is a pair of heat-vision enhancing glasses, but Frost once again downs the idea, saying that they wouldn't work unless Bumblebee was to suddenly get heat-vision in the next five minutes.
At the docks, Lucius Fox and Bumblebee hide behind crates as Bumblebee tries to show off her mid-term assignment, with the help of some friends, as fish are flung everywhere. Just then King Shark breaks through their crates, but Harley uses the spring-boots to jump on King Shark's face, getting his attention, causing him to charge into a wall of crates. King Shark breaks out from under the crates and Katana then begins to use the Weapon Homing Device, dropping it in mid-battle, but using it's homing function to bring it back to her, then starting to sword-fight with King Shark, until she gets knocked back.
Miss Martian then comes in and starts to use the heat-vision enhancing glasses, to overheat an anchor that King Shark was about to throw at her, causing King Shark to burn his hands and have it fall on his foot. Bumblebee then takes the reigns and uses her wrist blasters, with the help of team to stop King Shark, with Katana finishing him off by slicing the rope attaching a cargo-box to a nearby crane, landing directly on top of King Shark. Bumblebee completes the demonstration by zapping King Shark in the stomach as he's about to throw a crate onto her. Lucius then congratulates Bumblebee for her smart tech technique and teamwork, awarding her an A. Frost then peaks out from behind a corner and complains.
- This episode was listed as "Ultimate Accessory" on YouTube.
- This episode was listed as the eighteenth webisode of season 2 on YouTube.