HEX Editing PS2 Neo Geo Ports to 240p , having a problem with a few titles

hi guys , im trying to convert a few Neo Geo games that have been Ported to PS2 to 240p resolution.


i have done some others with success but the below are giving me problems , black screen or mashed speckled colors instead of graphics.


Garou Mark of the Wolves
The King of Fighters XI
Neo Geo Battle Coliseum


im not sure what is causing the problems............


anyone have a clue ?


chat soon