Obviously the rarest game is the Neo Geo one. There were only 4 or 5 made! The PC Engine special hu cards are rare! I bought 5 of them on Ebay from a UK seller for almost $1500,I bought Darius Alpha from a Canadian Seller for $1200 on Ebay as well. Then resold them to Dragsy(fellow Ebayer). I bought them All again in Japan at one store for a amazing low price of $3000! In regards to the Turbo Grafx/Duo the rarest game by FAR is a boxed Magical Chase! Their is no reason to debate this. I know hundreds of Turbo collectors and ALL of them own The Dynastic Hero but only two of them own a boxed Magical Chase! (Dragsy and I) I have been on Ebay for 5 years and I've only seen 2 boxed Magical Chases on Ebay and BOTH of which I own! The last one I bought for $609!!! AlonzoMourning23 do you own a Dynastic Hero ? I can believe you do but I bet you don't own or even know ANYONE that owns a boxed Magical Chase? but If you do please post a picture of it with your name next to it. Write on a piece of paper AlonzoMourning23 next to the box of Magical Chase. As far as $500 for Dynastic Hero,lol, just because ONE sold on ebay for 500 doesn't constitute it's value for $500. I bought Dynastic Hero on Ebay less than 2 years ago on Ebay for $200. The next highest one i saw on Ebay was unda $400 'cept of course that 1 obsurd auction on ebay which sold for ova 500! Did you know there has been 2 Dynastic Hero games on Ebay in the month of December(2005) alone? Did you know that BOTH of these auctions ended lower than $620 and BOTH of these auctions came with a Lords of Thunder, the 3 in 1 disc and a 100% complete boxed Turbo Duo!!! I was the winner of the first one! I got Lords of Thunder, 3 in 1 disc(plus bonus Bomberman), a 100% complete like new boxed Turbo Duo and of course a mint Dynastic Hero all for $615 shipped!!! [quote name='alonzomourning23']
I'd still love to get my hands on an original version. What do they go for now? I haven't seen one on ebay whenever I check.
Panzer dragoon is the most well known of normal, great rare games. I don't believe it belongs with upper echelon of rare games, as games like burning rangers had similar print runs and can still be purchased new from the distributer. PDS is a pricey because of equal parts game quality and scarcity, and it's only 150 or so. It's in the same category of dracula x rondo of blood (even if PDS is somewhat rarer), great game, somewhat difficult to find, but not super rare.
Donkey kong country competition and star fox competition are rare and often go for 300+. I think the dkc goes for a little more than star fox. They were available only from the nintendo power shopping guide (or whatever it was called) they used to put in the magazine every quarter. I bought dkc from them for 20 bucks, missed the star fox one though.
Darxxide for 32x was a european only release and considered the 32x's best game. That's worth about 300 I believe.
Battlesphere (and the updated gold version), for jaguar, is very rare and cost over 200+ when it was released by the manufacturer (the price has since been lowered, but I've never seen them sell it at the lower price). It was a homebrew. It immediately sells for 3 or 400 on ebay whenever they sell a few more on the site, and the reprints took only a couple days to sell out. The company has ran out of material though and there will be no more reprints.
Dynastic hero (u.s. version, japanese is like 20 bucks) for turbo duo goes for up to and over 500.
Magical chase for turbografx 16 goes for about 300, it is generally considered the rarest u.s. turbo game and is almost universally considered the systems holy grail. This is wrong though. IT is much, much easier to track down magical chase than dynastic hero, which I've only seen one (two tops) of on ebay ever. Dynastic hero is rarely mentioned even in turbo communities.
Sapphire for the pc engine duo (arcade card required) is worth over 500, it's a great, import only shooter. There was recently a bootleg or a reprinting of it, which is debatable. There is a slight difference from this one and the original. They had flooded ebay (at about 100 a piece) but are no longer availabe. I'm not sure how they have effected the price.
Darius alpha was a promotional pc engine game that was free with the purchase of a certain darius game. You had to mail away for it (japan only). It goes for up to, and occasionally over, a thousand.
Pc Genjin 3 Taikenban is another extremely rare promotional pc engine game. I've never seen one anywhere (though I'd love one). It's essentially Bonk 3 (bonk is pc genjin) except they dress him up like a girl (look at the bonk with eyeshadow in my sig). I have no idea of the value.
Also there are some atari games that go for over 1000. I believe I saw one go over 3000 once, and I don't even think that was an unreleased game. I don't know atari though. Though atari collectors are the really insane ones. They're the star trek freaks of video games.
Turbo duo (u.s. release) has about 6 (out of 20-25 games total) games that often hit or exceed 100. Cotton, super air zonk, bonk 3 cd, dynastic hero, beyond shadowgate and I think I'm missing another one. There's also sydmead's terraforming, possibly the rarest duo game in the u.s. Basically, I have the only one I've ever seen (purchased it brand new from telegames.co.uk). It is a low demand title, but I haven't even see one anywhere else. I think this game could well exceed 100 or 200, but at the same time it may not even hit it. It all depends which collectors see the auction.[/QUOTE]