Kizuna Encounter [Neo Geo] – Price: $10,000

Kizuna Encounter is a fighting game similar to Mortal Kombat and Street Fighter II. The game was sold on the home Neo Geo and the arcade version (MVS) as well. The MVS version is fairly easy to find, but the home version from Europe is extremely rare. There are estimated to be about a dozen copies.

With such a small number of cartridges people question if the game was even commercially released in Europe or just a prototype. This is another game that you need to be careful which version you have. The Japanese version looks identical in every way except for the packaging. The game only sells for big bucks when the full packaing is included.