You can run NTSC games on PAL consoles (by patching its country code, it's kinda like DVD regions you change the region, but you can't change the video format), but you will suffer some side effects of running on a different video standard. eg. a NTSC on a PAL saturn, will run slower, and won't be fullscreen, and PAL on NTSC the game will run faster and the image won't fit on the screen, it's too big. lol