Diggie

Diggie is the fourth preservative type found in world 3, Olive Hill

Physical Appearance
Diggie is a large tunneling preservative with a cylindrical body and dark ringed, cat-like eyes. Similar to Pang, it constantly sticks its tongue out. When underground, only the top of its head can be seen ringed with debris.

In-game Description
Moves underground. Note: Invincible while underground.