The episode starts at a hotel in New York City. Grandpa Max is checking everyone in. Gwen reads and comments on all the amenities the hotel offers, and Grandpa Max reminds her that it's only for one day. Meanwhile, Ben spots a room that's featuring the brand new Sumo Slammer video game. He tries to go in and go play it, but is stopped by a guard near the entrance. His attempts to convince the guard to let him through fall on deaf ears. As he gives up, Grandpa Max warns him not to sneak in. Ben says he won't, but changes into Ghostfreak and does so, saying it's not technically him. After playing the game for a bit, he reverts back to human form just in time for the guard to catch him...Read the full recap
The reason the Omnitrix is still a prototype is because it shows signs of malfunctioning when Ben transforms into an alien he didn't want, even if he did choose the alien that is correct.
For the first time, XLR8's transformation sequence is featured.