It was supposed to be BioWare's big triumphant moment, and it quickly turned into something darker and more frustrating.
Those choices triggered three different cutscenes that didn't fully explain the end of the series' story, and were only slight variations on one another with re-used cinematic assets. For the unfamiliar (or those in need of brain-jogging), Mass Effect 3 concluded BioWare's space opera trilogy with an explosive story whose last minutes whittled down into a series of three choices.
