At Biggie Box Japan, Ben waits in an epic line for the release of the latest Sumo Slammers video game, Cyber Sumo Slammers, but Ben must soon save the store- not from game-hungry customers, but from Steam Smythe, who wants to retro-fit a massive mech with steam punk powers![ATV 1][revised]
Plot
Just outside a Biggie Box store in Tokyo, Japan, Team Tennyson wait in a long line so Ben can buy the newest Sumo Slammers video game. Ben expresses his concerns to Gwen that the store may run out of copies before they even get in, but she and Max try to tell him that there aren't any shortcuts in life - the latter using his Gotchagotchi as an example. Ben tries to pass the time playing on his tablet, but when its low battery ruins that plan, he runs off. Suspicious, Gwen follows him, leaving Max in his lonesome.
As she correctly guessed, Ben finds his way into the Biggie Box. She follows him in, berating him for sneaking in. However, she herself is distracted by an aisle of Lucky Girl paraphernalia. Meanwhile, Ben hatches a plan to obtain all of the collectibles that comes with the game using Slapback. Gwen finally catches up to him, and she notices Steam Smythe at the store. He reveals to them that he pre-ordered the video game so he could get into the store and use a Cyber Slammer mech to wipe the data from machines using magnets.
Steam Smythe quickly kicks the two out for skipping line. Discouraged, the two overhear advice from Max (who is actually speaking to his Gotchagotchi), and they return to the store entrance. Steam Smythe, riding the Cyber Slammer, chases the customers out, and Ben confronts him while Gwen runs off. Ben transforms into Humungousaur as Gwen returns with a complete Lucky Girl outfit. Humungousaur goes in for a sonic wave attack, but it is reflected back by the magnets. Gwen, meanwhile, asks Max for some yen, which he provides. She spends it all on gashapon capsules containing keychains. She chucks them at the magnets, which they naturally magnetize to. Humungousaur goes in for a another attack, but the Cyber Slammer dodges it, wrecking the store in the process.
Humungousaur reverts back to Ben as Steam Smythe enters the store's warehouse. Gwen suggests Ben use XLR8 instead, to which he agrees. They confront Steam Smythe once more, with the latter throwing machine after machine at XLR8. Steam Smythe ups the ante on his magnets, only to find that XLR8 stole one of them without him noticing. It fires back at him, forcing him to dislodge the other magnet. He turns his attention back on his adversary, but can't find him. XLR8 climbs onto the back of the Cyber Slammer and messes with the valves on the mech, causing it to blast through the roof and into the sky. As thanks, the store owner gifts Ben and Gwen copies of Cyber Sumo Slammers, though Gwen asks if she can have her Lucky Girl outfit. Outside, Ben shows Max his copy, and he tries to play it. However, he finds out that his tablet is region-locked. Dejected, he goes to read a book.
Ben: I'll pass the time playing this soon-to-be-old Sumo Slammers. (the tablet displays a low battery warning) Gwen: Forgot to charge your tablet, huh? Ben: External battery! (Ben plugs the USB in, but the tablet still displays a low battery warning) Gwen: Forgot to charge your external battery, huh?
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Max: (sighs) You would never leave me, would you, Gotchago-WHAT?! (Max's Gotchagotchi suddenly dies) Max: Croaked again?!
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Steam Smythe: I did it by mail! Gwen: E...mail? Steam Smythe: No, snail mail!
Steam Smythe's exposition on how he was able to preorder is based on silent film from the 1900s, including the use of intertitles to stand in for dialogue.
When Ben and Gwen turn into their hero forms, their sequences are references to different forms of Japanese media.
Ben's transformation into Humungousaur pays homage to kaiju films, more specifically Godzilla emerging from the Tokyo Bay in the 1954 film.
Gwen's transformation into Lucky Girl is inspired by the transformation sequences of magical girl anime, in particular Sailor Moon.
Ben's transformation into XLR8 pays homage to the original Power Rangers.
Gwen hints to Ben to turn into XLR8 with the phrase "catching my Tokyo drift", a play on the common phrase "catching my drift" and reference to the film The Fast and the Furious: Tokyo Drift.