Talk:Plants vs. Zombies 2/Upcoming content/@comment-9944069-20151211021159/@comment-26593304-20151211051542

That's what I'm thinking too. In a way, I feel that it will work similarly to Zomboss spawning zombies. The portal will appear, spawn for a set amount of time, then leave. A different portal will appear in the same lane, spawn for some time, then leave. When I think about it, it really isn't too different from the Portal Combat minigame in the original, although the portals all stay in the front and there is no "in-out" gimmick.