"Yeah, maybe just don't stand in front of the invisible train. Nobody's ever really tried it before, but I doubt you'd enjoy pioneering that scientific discovery."

He crosses the tracks, sticking his hands in his pockets.

"It's -- complicated, but it mostly comes down to the four of them having more advanced digivices than we do -- the ones we use are the original designs left behind by the Crests, while the ones they use are modeled after Ken's corrupted version," he says. "It lets them open temporary gates between two points, whereas we have to use pre-existing ones."