ICE

From DoomWiki.org

An ICE from Hacx.

ICEs are slow moving enemies from Hacx that somewhat resemble dinosaurs. Their only attack consists of charging at the player to bite him with their sharp teeth. With 225 hit points they are not too hard to take down, but their attack is actually very powerful and allows them to "jump" down from ledges to engage the player, so it is best to attack them from a safe distance.