|Release date||22 April 2008 (Update)|
|Unlock hint||Unknown edit|
The Terrible Caverns is unlocked in the deeper parts of the Meiyerditch Dungeon, near the Mutated bloodvelds, the Zombie Hands and the Skeletal hands. It's based in the track The Terrible Tower, like The Terrible Tunnels. All three tracks have a similar pattern, of which The Terrible Caverns has the fastest tempo.