Here is an interesting comparison of Cortana over the course of the 4 halo games:
PTesh adds his dulcet prepubescent tones over the top of one of the new trailers for weapons...
Try upgrading your browser to Google chrome (you wont regret it). There is probably an IE...
Go into Sandtrap in forge and track lots of energy coils underneath the elephant. Then set their respawn time to instant. Blow them up and the elephant will flip over. Once it's flipped on the screen it will say "Hold RB to flip... wait, what? How did you do that?" because normally it would be impossible to flip the elephant.