I haven't played this yet, but the concept sounds hilarious.
Here is the link with the rom (from the creator)
I thought it would be pretty cool to make a Neo Geo-themed game. Given my interest in collecting AES (home) cartridges, I chose that as the theme. You are a collector trying to get a full set of AES cartridges. The in-game prices should be reasonably close to actual game cartridge values, although they may be somewhat outdated depending on when you play this game!
Neo Geo collections can be expensive, so you will have to use a variety of ways to get money for your games! Gambling at the casino, robbing convenience stores, fishing at the flea market, working at a burger joint, or trading with a fellow collector, are all fair game!
You can only hold ONE of each game, so trade wisely! Now you too can experience the life of a Neo Geo collector, but without sacrificing your soul, disposable income, and sanity!