Notice - If you want to outsmart the game and watch all three endings without having to repeat the final battles, then after you've talked to the Catalyst you should exit the game for a while, find a catalogue on your hard drive containing saved games and create a backup of a file named AutoSave.pcsav. In this case the game will make a choice for you and it depends on the decision you've made in the previous game regarding the Collectors base (whether it was destroyed or not). Notice - If you've gathered less than 1750 points of effective military strength, then you won't be allowed to choose the ending on your own. The most common situation is that you're presented with endings 1 & 2, however if you've fulfilled additional requirements you may also unlock ending 3. The most important moment of this conversation is the explanation of the available game's endings. Sadly you don't have any real influence on this conversation, so you should focus only on listening what the Catalyst has to say.

Here you'll have a chance to talk to the Catalyst that will take a form of a small child.

It doesn't matter how you've resolved the conflict situation with the Illusive Man, because all three endings lead to the same outcomes - Shepard will be transported to a new place.

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