Graphics for your PC:
Insert CD into a PC CD-Rom and search for the hidden pictures 

Get Cheat Codes:
Here are how you unlock the cheat codes menu- 
Beat the high scores on the classic arcade games in the Fur Fighter 
Village.Beat ALL the bosses including GENERAL VIGGO,and then go back to 
each boss as the correct character... 

1.Rescue Gwynth: Tweek
2.Rescue Juanita: Rico
3.rescue Claude: Julliette
4.rescue Esmerelda: Bungalow
5.rescue Winnie and Mai: Roofus or Chang
6.VIGGO: Tweek 

After doing this you will GET a cheat. You don't have to fight the boss again, or exit 
the level properly, just go to the hub from the pause menu and you will 
still have the cheat.

     

Thanks to Revolution reader Dave Beeston!