I think once you reach every teleporter, you can travel between them regardless of their colour.
I think Mercury Steam went backwards on this one. Samus Returns allowed you to travel between any teleporters you found from the beginning. That encouraged backtracking in order to get new expansions after you got new abilities because you could go back to any area almost instantly. Unfortunately, Dread restricts which teleporters work between them until pretty much the end of the game. Which is... annoying. Specially when their previous game did it better.
I know Dread partially adresses this by making you visit every area multiple times in a somewhat organic and guided way, unlike Samus Returns where once you reached a new area you were pretty much done with the previous one (in terms of advancing the main plot). If you are in Ferenia and the game suddenly wants you to go to Artaria for an upgrade, it will guide you to a near teleporter, an elevator or some kind of transportation method. So you can use this oportunities to go hunt some items while on the way to the next upgrade, making the lack of interconnected teleporters not much of an issue. But still, it's a little annoyance that doesn't really have a reason to exist.
Last edited by Vodacixi - on 20 October 2021