|Name of the file: Bioshock demo [Xbox 360] - Author: ANO - [XBOX360]|
|To enable hard go to your gamer profile in the dashboard and then change your default game settings. Go to general, then change your difficulty to hard.
Start up the Bioshock Demo.
Hard should be highlighted when you have the option to select your difficulty. Make sure not to move the cursor or you will not be able to select hard again unless you hit B and then return.