Kaijudo: Clash of the Duel Masters (2012)

S2E20 Brainjacked

After a picked-on student swipes Carny's tech-gauntlet, hoping to get back at his tormentors, he accidentally unlocks the Veil, allowing Creatures to invade the school and possess the students. It’s up to Ray, Allie, and Gabe to thwart the invasion and restore order before it's too late.