Patch Pal To NTSC affects Gameshark codes?

[Adenosine]

Greetings.

Does "patching" a game (Victorious Boxers) from the PAL version to NTSC affect the gameshark code?

I just obtained a copy of this game and I've tried all the gameshark/codebreaker codes available but they still won't work. I think the copy has been patched from pal to ntsc because the opening video of the game is not centered on the screen. I think that's a sign that the movie was a pal one. The actual game doesn't have the same off centered problem as with the opening video. I think it's the effect of a pal to ntsc patching.

I've tried both PAL and NTSC codes and none work. I hope someone can help me with this. Thanks in advance people.

[MegaPyro6]

One would think that the original version of the game is the code version to use. The patch just changes the video format, nothing about the gameplay. Maybe try having both sets on at the same time.