When Flippy saw the robots start coming through the elevator doors his facial expression was that like "we're all gonna die!" He was so busy looking for something to fend off the robots he didn't notice a bright white light start to fill the room until it already had gotten him. 

Flippy seemed felt like something weird just happened one second he was looking for a weapon to fight for his life, and the next he's back to standing around the computer with the others. Flippy needed a second to think, but while trying to clear his mind Josive was back to the part when he was about to leave the team and Bella seemed to have remembered what happened but why not him? "Yeah Josive Bella's right we were just in this room and these robots were coming through the elevator, and me, Bella, and Jared were sent into lyoko. And got Aelita to this tower thing and you and her did some computer stuff, and out of no where a big white light engulfed us and now we're back here. Please tell me that any of that sounds familiar?"