What's also awesome is that it was made by Ed Fries: Ex-Vice President of game publishing at Microsoft. Fries was one of the original visionaries behind the first Xbox, and key to Microsoft's success in gaming.
I have huge respect for the guy, most execs at publishing houses are business folk with no real clue when it comes to games, or game development.
He built this game after he resigned as something he wanted to do for fun!
Much respect!