The Freezing Kig-Yar is a glitch on Halo 2.
Description[]
To see the glitch, the player must play on the level, Outskirts on Legendary, where you enter to Sniper Alley.
Get a Sniper Rifle or Beam Rifle, then shoot the Kig-Yar that walks into the open in the chest. Usually, he freezes and draws a Plasma Pistol, but very rarely, he dies frozen in midair if you shoot its head. Occasionally, while he is frozen, he will shoot you with the Plasma Pistol.