I plug in the Gameboy and press the button. The little green screen lights up with Mario running across the bottom. I start at World 1-1. The blocks pop up as I stomp on them. But wait, it starts to go dark. I unplug it quickly. The battery is weak again. Maybe if I shake it a bit? I do and try again. Still doesn’t work. Ah well, I’ll have to save my game soon.