I recently bought the classic game, Bubble Bobble, from Nintendo Wii’s Virtual Console shop. But when the game was downloaded, and i attempted to run it, i was greeted with a green crash-looking screen. I could hear the game’s sounds in the background, and response from the controller, but the screen was fubar. I was using a component cable, and with a composite cable the problem went away. But after spending 50 bucks on the component cable, and seeing the trashy colors from composite signal, i didn’t want to give up right away. I googled long before i found a solution that worked for me:
This fix might not work with all Virtual Console games. I don’t even know what it does, but it worked for my Bubble Bobble.