Looks like we had the same exact idea, but executed slightly differently! How crazy is that? Your version seems a bit simpler, it's just UNO but you can switch between available cards. In our game, your card is an individual who can shape-shift. Plus, our game has randomized rules, not just UNO rules. And the goal is a bit different, in your game, you have to be the last card remaining, while in our game you just need 1 player to win the match to win.