I thought I had become bored with platformers for awhile now (also I thought rougelikes sounded terribly hard) but for some reason I really like this one.
I bought it as soon as it came out. Through the Xbox Live website because in the system pre-purchase screen it was -1 MS Space Dollars and on the confirm screen it was 4.29 Billion MS Space Dollars.
I can't believe it's taken this long for there to be a roguelike platformer. It's such a simple, beautiful idea. I kind of miss the pixely-er graphics from the original PC version, but CO-OP looks so worth it.