Quiet Stranger said:
And now I'm going to ask, Star Child?
The Star Child, having never been mentioned in the series, appeared at the very end of Mass Effect 3 depicted as the specter of the child that Shepard watched die on Earth at the beginning of the game, cosmicly transparent hoodie and all. He showed Commander Shepard how to use the Ending-tron v3000.1 after giving a very weak explanation as to why he has been murdering trillions for the past hundreds of thousands of years and why he has decided to let Shepard decide what to do.
I have to be honest, I DO NOT GIVE A SHIT about the entire controversy and I think that Mass Effect and Bioware are both horribly overrated, but having watched someone stream the ending, I can tell you that it felt as awkward and rushed as you could possible imagine. Painkiller had a more coherent storyline.