I would have to agree that Dungeon Explorer II is a tough US Turbo game to
get. You can usually find it on the bay of E, but you're usually not paying
less than $80 for it. Cotton seems tough to get nowadays as well, though not
nearly as tough to get as Panorama Cotton for the MD, but I digress. Tough to
find Japanese Duo games are usually like Sapphire, Legend of Xanadu II and in
some respects Dracula X--though the demand for that one will prolly wane
dramatically when and if it does show up on the PSX.
As far as rarity goes, that's kinda hard to gauge unless you have a specific
number to deal with as to how many copies of the were made in its print run.
You can try to gauge it by the price that is demanded for the game. You
usually don't see Sapphire or Xanadu II go for less than 3 digits, but that
doesn't necessarily mean that the game is rare; could be just high in demand
and out of print.
I really shouldn't say too much on this matter for I'm not much of a
collector, I'm more of a gamer first. I'll track down a rare game if it is a
good game. I won't care if the rare game is crap. So I'll shut up now.
Dustin (AKA:Yuushi)
"I only want your happiness
Knowing I can never be yours to share it"
--from Clover by CLAMP