Everyone here saying Conan is alright in this thread is crazy. Just played the demo and it was some terrible shit.
Only games on that list that are possibly worth the price are Perfect Dark Zero and Kameo.
I doubt you have played most of these games.
My view on things.
Alone in the Dark: I hate this game.
Faecbreaker: Just terrible.
Kameo: Excellent game. I am still not sure why it got the initial negative reception it did.
PDZ: Decent singleplayer, not great by any means, and awesome multiplayer. Worth your 5 bucks either way even if it feels a bit dated.
Rockstar Table Tennis: Plays a lot like a Virtua Tennis game, but it is Ping Pong. The graphics were amazing for its time, not so much now. Again easily worth 5 bucks. A very solid game, but not deep enough to justify a 40 dollar retail game.
GRAW: A really good game when it was released. Not sure if the multiplayer even exists anymore, but the single player is really good on its own.
Tornado Outbreak: I mentioned this one a couple of posts up. Get it for 5 bucks.
Viva Pinata Party Animals: I think it is as good as most Mario Party games, which is not saying much. I would recommend Fuzion Frenzy 2 over it. Easy achievements though.
The rest of the games I have not played yet.