I am quite confused to report this, considering I have bought it before.
If I recall Metal Slug was taken from the marketplace, I had spent 800 MSP's way back when in like 2007ish, and played the game a little. But for some reason, it says I never had and that the game was non-existant.
I am positive that I have bought this game, and I have only had this account.
If anyone can explain this, I'm open to some sort of interpretation.