Hello, I'm working on my first portable system, a Sega Genesis portable, and ran into some problems. So I figured id post some stuff here and hopefully get some help and show off what I have so far. sorry for the basic photo's. its a bit of a mess right now and I didn't think of taking progress pictures. I decided to use an old Game Gear Case to fit everything in, added an extra button below the other two (I lost it for now, but its another game gear button) I'm really close to finishing but for some reason my screen keeps rolling or going into black and white. I don't know if theirs a way I can fix this or if I need to get a new screen, at witch point I'm going to have to try to find one that I can modify to work off 5v. I'm also trying to figure out what to use for batteries. I have plenty of room in the old battery holders, and the system only uses 5v. I figured that maybe I can use one of those USB battery banks? That way I don't need to worry about the charge circuit. Has anyone tried this? or does it seem like it wont work? The audio is good enough. I just attached it to the game gears volume control. I was going to use the headphone jack, but I couldn't figure out how the game gears one worked Anyways! give me any suggestions or tips! they will help a ton!