RPG Insanity

Has anyone filled in the whole enemy list? Where are the undiscovered areas? I am at level 749 and am wandering around Metal Area 3, but have not seen any way to get to any undiscovered areas unless they are Beryl's Dreamland (and it recommends level 800+).

You didn't say which positions your missing areas are in; so, I listed all of them in the order of the Enemy Guide:

Pacifying Corridor
Village Ruins of Alegria
Magma Sea
Vitah Ridge
Floral City Ruins of Petalus
Mana Temple
Argent Cage
Town Ruins of Rabrint
Witch's Crucible
Amber Village of Grahn
Jailed Town Ruins of Liniya
Liniya Cave
Baom Hall
Subzero Lagoon
Wamuda Garden
Watered Town Ruins of Matarl
Village Ruins of Sereno
Vensedol Castle
Dark Lord's Domain
Metal Area 1
Metal Area 2
Metal Area 3
Beryl's Dreamland - 1F
Beryl's Dreamland - 2F
Training Ruins 1 - LV 250 Area
Training Ruins 2 - LV 400 Area
Training Ruins 3 - LV 600 Area
Battle Arena
Secret Battle Arena
Other
Lost Dreamworld

Thanks for the list. I'm missing the Training Ruins and of course, Beryl's Dreamland. Where are the Training Ruins?

I'm sorry. I can't remember how those are unlocked. Try going to Petalus and speaking to Beryl at the arena, and the all the Beryl Replicas and sheep in the club house.

Speaking of unlocking areas, how does one get to the metal area?

After Lugre Dungeon, return to Petalus and go to the bear hideout. Speak to the bear at the smaller table. He will unlock the metal region. Once that is done, Metal Region will appear on your warp map. Just warp as usual.