Halo 2

While I was playing Halo discovered easter eggs that you can find on various levels of the game. These easter eggs show up in the game as a skull. I was just messing around on one level and I happened to find one. This one just so happened to make all of your gauges ( health gauges, ammo gauges, etc. ) invisible . You cant even see your weapon or your cross-hairs which make it extremely difficult to play. Unfortunately you can only find these easter eggs on Legendary.