Rare & Valuable GB/GBC Color Games?

[racketboy]

I've got a preliminary list made up, but wondered if anybody had some suggestions for ones that need to be included...

[ZeroAX]

conker's pocket tales. Really good game and kind of hard to find. And the harvest moon games (at least in europe)

[NotBlaine]

Resident Evil Gaiden can be pretty valuable - not sure how rare it is.

That's about all I know about GBC rarity.

[kewlrabbit]

The Metal Gear Gbc game is fairly hard to find. I know complete copies were hitting upwards of $70 a few months ago, but that may just be because of MGS4. Still, tough to find either way.

[Mr. Stripe]

There is Magical Chase on gbc in japan. I think it's quite rare.