A teaser trailer apparently unlocks in BioShock that teases the game's sequel. This trailer is apparently is unlocked by beating the game. Now, probably this was only found out because 2K Marin(the developers or publishers, I forgot) just updated the game to have this. But there hasn't been any news that I heard about an update to the game, because if this is as easy as it sounds and this is how it always has been(just beat the game and look in the BioShock 2 trailer), that is just SOOO STUPID how it just became news recently(check...