I just want to add that the free game being offered today, Button Up, is one of the most hilariously bad games I've ever played. Here's my experience:
It described itself as a game where you sew buttons. I thought that if someone was to make a game about sewing, it has to have some new ideas in it. It might be interesting to experience a new type of game. So I download and install it.
I boot up the game, and I hear that Ferris Beuller song (you know, "BOW BOW, OHHHHH YEAHHHHHHH, BOW BOW chicka, chicka-chickahhhhh"). It's not just a song that sounds like it. It's the actual recording. So then I start playing the game. The screen is filled with buttons flying all over in random directions, and the game starts buzzing at me. There's no sewing involved at all! You move around and pick up buttons with your main button. I click on a chat window to tell someone about the Ferris Beuller song, and the first level BEAT ITSELF. All this time, that Ferris Beuller song is on loop.
So I played more and I figure out that blue buttons are points, and red buttons hurt you. Well, that's fine, except the buttons randomly and instantly change into other buttons while they're flying in random directions! Not to mention the fact that some of the red buttons are powerups. So I saw the yellow powerup, which is supposed to make you bigger (according to the help text). I picked it up, and GAME OVER, INSTANTLY. I was laughing pretty hard at this point, because the game was just such nonsense. I played one more time, and once again, yellow button gave me INSTA-GAME OVER as soon as I touched it! So yeah, it's a REALLLLLY bad game, and I enjoyed it on those merits. It really is more a prank than a game.
I was hoping it had a new type of gameplay I hadn't seen before, but it's just a dodge/collect game.