A green screen
As the students saw Quinn walking up to the stage, they couldn't help but wonder: what was he thinking? He had done well in the fighting tournament, and his fame around the school had grown. There probably wasn't a single student who now didn't know his name due to what had happened.
However, there were some key differences between the tournament, and fighting now. Quinn didn't have any of his beast equipment on. People had theorised that the equipment used on the day of the event, had to be at the advanced level or higher. This was the only explanation they could come up with as to how Quinn was able to move so fast and why his attacks were so powerful. After all, he had defeated the multipliers clones in one strike. Something that hadn't happened before Quinn's fight.