User blog comment:Suparockr/List of Plotholes throughout the series/@comment-1679409-20120717153223

Here's one that bugs me. It's one of the few problems I had with the original endings that was not at least addressed in the Extended Cut. If the Catalyst, the leader of the Reapers, is on the Citadel the whole time (actually, he is the Citadel), then why do the Reapers need the keepers to open the Citadel relay into dark space. Why can't the Catalyst do that for them? Were the controls too high? Do StarMom and StarDad not allow him to go into that room?

Considering the whole point of the first game is to stop Saren and the geth from opening the relay after the Protheans reprogrammed the keepers, this essentially makes the first game into a big plot hole.