Gulp Worm (Resident Evil Code: Veronica)

A monster created from a common earthworm being infected with the T-Virus. As a result it has grown to enormous proportions, large enough to swallow a man whole. Its ability to tunnel through soft soil at tremendous speed, coupled with its ability to detect minor tremors in the ground, it can follow your footsteps on the surface and attack you wherever you tread.

The trick to avoiding its attacks is to stand still until you see it about to burst through the ground where you stand, then quickly move out of the way before it does so. While it is partially submerged, unload your most powerful weapons into its body before it tunnels back down into the ground.