It's quite fun. I really like the art style and the music. I do feel like it needs a gentler difficulty curve. Some time where not too much is breaking at once in order to get acquainted with each game, where it is, etc.
As it is right now it feels like it throws you into the fire and no matter how good I was at the games, or how hard I tried, it was never enough to keep things going for more than a minute or so.
Maybe that is just a skill issue on my part, though.