The Tunneler is an enemy in Final Fantasy IV -Interlude-.
Stats[]
#48
#67
Battle[]
Aside from a weak physical attack, the Tunneler can cast Earthquake, which hits all party members, and can use Constrict. Their HP is low and they can be easily defeated within a couple of hits. It has a chance of dropping Silver Apples.
A stronger version is fought in the Lower Section of the Tower of Babil as one of four Eidolon-holding bosses in a fixed encounter with buffed-up stats. It counters all attacks with Earthquake while also using Earthquake and Constrict for its normal turns. Cecil alone should attack while Porom heals the party. Casting Haste on her so she can heal faster allows the option for Palom to join in the assault with his magic.
Alternatively, if the player grinded enough levels for Porom to reach level 40, she will learn Float, making this battle easy.