Hey people, these are the codes!

To get the Detection Saber using an Action Replay MAX, use this code: TDYF-X969-XT06G AABK-0BN3-DXJHU

To get the Edge of Ultima (a stronger but slightly shorter version of the Detection Saber) Using an Action Replay MAX: KWYQ-1D8A-VY8NT WQW2-PTTE-AXHBX

Thanks to godzilla3456 at SuperCheats.com