Can I use Xbox 360 slim games for the new Xbox one
Xbox One hardware is not compatible with Xbox 360 games. Xbox One was built to play a whole new generation of games that makes use of its advanced technology and the power of the cloud.
Xbox 360 slim games are the same as the original Xbox 360 games. Why would you ask this?
If you want too and PS play station games work better
I dont think you will be able to unless the game has become a platinum hit. but im not sure ik thats how it worked out for the original xbox and the 360
You cannot use xbox 360 games on the xbox 1
The Xbox one will NOT work with 360 games.
As of currently no, it isn't backwards compatible with 360 games due to the software formats but there's no word yet on whether Microsoft will find a way to fix that.