The entire opening musical number (even if it was just a dream).
From Break a Leg
Kimmy and Ramona's Teppanyaki performance to convince Steve to choose Gibbler-Style as his wedding planner. It works!
From Say Yes to the Dress
Fernando's karaoke performance of Livin' la Vida Loca with the Gibblers dancing in the background.
From Fast Times at Bayview High
The dance battle.
Not to mention, the victory Gibbler Gallop afterwards, where everyone joins in, especially the once-emotionless teacher Mr. Byenberg!
From Ghosted
The moment Stephanie Tanner drops her menu at the restaurant to confront Sienna and her friends over their treatment of Ramona. Though she stumbled at first, she rattled the bullies with laser guided insults.