ok this is what ive found out check this out
THIS IS THE ONLY WAY TO FIX THE FREEZE!!!! This hack seems to be working for me: OK here is the ultimate fix for all of you non-believers! Unpack the game with ds buff v1 and go into the Data Folder, then enter the Data folder in that one. REMOVE the file called guru2.narc and RE-PACK all and voila! If you want to know how I figured that out… its simple: on the internet, there was a Nintendo Anti-Piracy topic about Nintendo hiring a anti-piracy GURU to fix their problem, so… the NARC file contains anti-piracy data. So by removing it, it fixes it!