Maurice was being held back by Austin while Emily and Darkie were held by their boyfriend.

They were trying to kill vegeta

Darkie: I'M CALLING THIS BULLSH*T! I MOST KILL HIM!

Emily: HE'S MUST DIE!

Maurice: How the heck shadow run out?! I know he'll run out eventually but not right there. They could let go on and if I'm correct, sonic stayed in his super form for days so shadow could the same!