Collectors grab your wallets: Yahoo! is hosting an auction for a Rockman Battle & Fighters trial cartridge, a rare item that was stationed at Neo Geo Pocket kiosks for demonstration purposes only.
Like most trial/sample/demo cartridges out in the wild, there's a possibility this particular build of the game contains an array of differences from the final build. Won't know till it's in our hands, eh?
The seller notes it's in great shape with very little wear. The price? 9,980 Yen ($100). Ouch. I'd definitely go for it, but I wouldn't have the chance to play it as I'm Neo Geo Pocket-less. That said, feel free to have at it.