There is a cortana easter egg if you go in without a death on hard using just abilities, a sparrow, and constant verbal abuse against the templar. After chewing out the first boss, you take the spirit bloom path with one team and have to race to the bottom before the other team spins 7 times reciting if robots dream of electric sheep and fall down and dies on the second run while 2 Warlocks wear Manifold Seeker helmets that look like Master Chief. Go to the broken time gate and have your party leader go to the start menu and have everyone push him off the ledge before you dance around his orb IN SYNCH. The body of another Guardian will have been unlocked (7 guardians) and you will hear the stranger speaking over the radio ending in "Call me when you need me." (Reference to Halo 3's ending) The cut scene of the reef should be available again as you enter it. If done correctly and you you yelled clearly enough for the voice recognition, you will have unlocked the Queen's "Nude Raider" skin where her skin glows in patterns in scant clad armors. You will then get a trophy that says "Finish the Fight" and the credits will alter slightly for the next Marvel movie where Qui-Gon Jin comes back to congratulate you on meeting the requirements to unlock the real storyline, and that you are actually Commander Shepherd after the last iteration of Reapers due to their make up breaking down to a Nano scale, confirming the Darkness' identity. You will then have to wait for the official dlc while you look through a special in game deck of grimoire cards to read that youare actually going to go through time through the different ages only to die where you were revived. You have found out that everything you had hoped for was just a means to keep the darkness lost in a time loop created by you and the Vex. You are the prime Vex machination and you played right into their program. They wrote your fate. They called you to your Destiny. [spoiler]I give you a hamburger[/spoiler]