Main issue is the console. NTSC GameCube supports 50hz, but not PAL color.
Therefore a component cable is in most cases required to avoid black and white. (I don't have a signal analyzer to determine exactly why)
Of course, 50hz also means owning a capable TV.
Even then Freeloader game compatibility isn't perfect. One reason is NTSC consoles lack a language menu, PAL games that use it will run English only.