The UnDeep are Akrid bred by the Satanist Empire as a group of savage beasts to join there forces. The UnDeep were kept in the mountain range's known as mount wario and were known to eat racers.
The UnDeep were created in 3 generations. the first gen was created some point during Adolf Hitler reign. They are able to shoot strange pods of goop at people, vomit up over akrid and just be a nusciance to people.
They are scared of Number Captains.
Gen 1[]
The generation 1 was created during Hitler's reign and were kept in statis by G-Man because he found them ugly. They were freed from statis at some point during a Satanist civil war and many were slaughtered. The rest were slain in World War III.