Sometimes an April Fool's joke becomes a real thing, and this is apparently one of those cases. The Poop Slinger physical release from Limited Rare Games, a crappy (heh) game for the PS4 (which can be had digitally for $4.99 on the PSN Store) actually arrived in peoples' hands and the internet has gone a little crap-happy over it. Not so much that the game is great or that anyone loves it or anything, but it's apparently SO rare that it may actually be THE most rare game to be released ever with only 84 recorded sales from the pre-order drive. Only time will tell considering that Sony requires a minimum of 1,000 copies to be printed in order to be licensed.
Surely the other 900+ must exist SOMEWHERE, but the company in charge (Limited Rare Games...) claims to not have them and to have gone bankrupt. Maybe the remaining games were seized by a bank, or maybe this is all some elaborate joke by another similarly named company... a "long con" if you will.