Ratchet & Clank: Rift Apart hidden room under Corson V

Discovered by complete accident but if you get hit by the train in Corson V then you might be lucky enough to find this hidden room under the map!

[@jdeltaruff]

What the fuck?? I'm here from reddit. Is this the first time you found it or is this you going back?

[@OohDanOne]

First time finding it, completely by accident!