Lair Codes -

Cheat Mode
Enter the following codes into the game's cheat menu:

chicken - Chicken Curry video.
686F7420636F66666565 - Hot Coffee video.
koelsch - Unlocks Stable option for all levels on the mission select screen.

Use Your PSP!
You can indeed play Lair on your PSP, remotely via WiFi. There are many limitations (including the non-functioning of the PSP's and buttons, meaning you can't lock onto enemies, slow down when flying, hover or land), but you don't have to use Sixaxis to control your dragon anymore. Instead, you can use the PSP's analog stick. Start a new game, use your PS3 controller to get through the tutorial, and then use your PSP for the rest of the game!