Bonus Levels
Use a link cable to connect to a GameCube and activate the three Game Boy Advance switches in its version of Prince Of Persia: The Sands Of Time.

Continuous Slashing
Crouch, then press A + B for continuous slash

Beating The Sorcerer
To beat the sorcerer the first time you have to find the real one first, then reverse time and keep hitting him. The second time you have to deflect his shots back at him to take his shield down. Once you do that, use reverse time and then hit him. Repeat this pattern and you can defeat the sorcerer easily