This scene is when Superimon appears and reveals the truth of the Blackagumon he gave him.
The scene shows Blackagumon eating computer data.
Aaron: That's enough you little demon!
???: It's only just started.
Jake: I know that voice.
Suddenly, Superimon appears and gives the Balckagumon more data and starts to glow and grow.
Megan: Superimon! What do you want?
Superimon: Why, I only came to show you my present's true form.
Blackagumon: Blackagumon dark digivolve to...
Aaron: What's happening?!
Superimon: He's Digivolving, of course.
Keith: Everyone out, Now!
As our heroes escape the area, the creature becomes it's true self. A huge Skeletal Dragon with a shark Torpedo on its back.
Emi: That thing is huge.