Fun fact: Nic Cage's face can improve everything—including, yes, Halo. Just don't expect things to feel as dramatic when you see Nic-Cage-Cortana talking to Nic-Cage-Master-Chief.
This mod, which replaces all textures with Nic Cage's face, is pretty hilarious—as you can see in this video by Gunner:
The thing that happens around the three minute mark? Too good.
Cagelo part 2 [Gunner]
DISCUSSION
Fun prank for anyone that doesn't know about chrome extensions:
Download the nCage extension for Chrome on your victim's computer and watch in joy as every image turns into a different picture of Nic Cage.
Nic Cage, he's the gift that keeps on giving.