By completing the block puzzles found in the Hacking mode, you will earn 15 different codes that can be used to unlock various videos and artwork at the website: www.codelyoko.com

Code - Effect

9L8Q - Dark Enemies Wallpaper
6G7T - Desert Sketch
4M9P - Fight Video (Ulrich, Yumi and Scorpion combined)
5R5K - FMV Ending
8C3X - Forest Sketch
2F6U - Ice Sketch
7E5V - Mountain Sketch
3Q4L - Overbike (video)
8P3M - Overboard (video)
8N2N - Overwing (video)
9H8S - Scorpion Video
3D4W - Scorpion Wallpaper
5J9R - Sector 5 Sketch
9A9Z - Ulrich (fight video)
4B2Y - Yumi (fight video)