Zeta Fighters (Gundam Build Fighters Try/Zeta Gundam)

Synopsis: "When testing out a new Gunpla Battle simulation system at the Nielsen Labs, Sekai and his friends ended up in another universe where the Gryps Conflict occurred. Stuck in the Zeta era of Gundam Universal Century, they have to fight and survive on the now all too real war, and find a way back home no matter what."