Krazy Kreatures is definitely one of the hidden gems in the NES library. The main reason why so many gamers missed out on this one back in the heyday of the NES was simply the fact that Krazy Kreatures was an unlicensed game and, quite frankly, most unlicensed games were terrible. However, Krazy Kreatures is the anomaly because the gameplay is so simple yet feels original and there is even a GOOD 2-player co-op mode you can enjoy with a friend. Definitely give this one a try!