[quote name='vincewy']I can guarantee Chaos Field will be RARE, if you check ebay/half.com, new US version are almost nonexistent right now, other rare games (besides the list from first post) I can think of (unless Game Quest Direct gets more reprints)
Zatch Bell
Mario Party 5/6 (if anyone has sealed copy for trade, send me PM)
Mystic Heroes
PSO 1&2 (not Plus version)
Beyond Good and Evil
Monster Jam: MD (PS2 version is common)
Lost Kingdoms II[/QUOTE]
I had never heard of Chaos Field before I saw it the other day at Fry's. Fry's is a great place to see obscure titles. I saw several GC games I didn't know existed, and 2-3 times as many PS2 titles I didn't know about.
Here's another one for you: King Arthur. That game came out and quickly flat out disappeared. There is one copy at my Fry's, and I haven't seen it anywhere else since it first came out, on any system, but especially Gamecube. But of course those multi-platform titles aren't quite the same.
Here's another that you wouldn't think is rare but I can't find a copy at any B&M, and I only see 2 completed auctions for it on ebay (there are more for Chaos Field): Prince of Persia Sands of Time.
And I agree with whoever mentioned Shrek Super Party. That is pretty rare on all systems. I actually bought a used PS2 one from GR and sold it on ebay about a year ago. Played it for a few minutes to test - it's like a poor man's Mario Party, but it could be a bit of fun if found cheap, which it can't

. Wow, just did a quick eBay check - the GC version is actually the easiest/cheapest to get - about $30 new. Only one new Xbox copy sold recently - for $60, and no new PS2 copies have been listed recently (but a used at $31 did not sell).
I got a copy of Shrek Extra Large at the TRU clearance about a year ago for $3 to use as trade-in fodder at GR. I didn't trade it in because I thought the kids might like it. Then I read the reviews

- but I decided to keep it anyway just for kicks. It isn't as rare as Shrek Super Party, but it can go up in my display of the worst games of all time next to that copy of Drake for Xbox. I also picked up Eternal Darkness at the same time - I had no interest in it and just got it for trade-in fodder. For whatever reason I held on to it and I'm glad I did. I'll play it some day.
Here's a list of *obscure* GC games - I haven't researched whether any of these are rare or not. These are just ones I haven't seen recently or EVER in some cases:
* Aquaman: Battle for Atlantis (also a candidate for the wall o' shame)
* Asterix & Obelix XXL (European only release?)
* Bad Boys II: Miami Takedown (PS2 version was great EB trade-in fodder last summer - never seen a GC one!)
* Bonk's Adventure (??)
* Butt-Ugly Martians: Zoom or Doom! (PS2 version common and cheap, didn't know there was a GC one)
* Casper: Spirit Dimensions (??)
* Charlie and the Chocolate Factory (like King Arthur, disappeared fast - haven't seen GC one for a while now)
* City Racer (??)
* Conan (another Europe only game?)
* Disney's Extreme Skate Adventure (a very good game that I ordered online a year ago - never seen in store)
* Go! Go! Hypergrind (I bought this for $10 new at GS, but don't see it much any more)
* Gotcha Force
* Mary-Kate and Ashley Sweet 16: Licensed to Drive (have never seen - for wall o' shame as well)
* Muppets Party Cruise (only rare new - seen many used at EB/GS)
* Pinball Hall of Fame: The Gottlieb Collection (common as snot on the PS2, don't see GC one too much)
* Rave Master (at Fry's right now - only place I've ever seen it)
* Risk (there's a GC version of this? Who knew?)
* Ribbit King (used to be everywhere, not so much now)
* Robots (see King Arthur and Charlie Chocolate)
* Shox (??)
* Spirits & Spells
* Superman: Shadow of Apokolips
* Tarzan Untamed
* Taz
* Worms 3D and Worms Blast (I had no idea there were Worms games on the GC!)