Step 1: Finding the right stuff.
What you need:
- Gameboy (or any device that runs off batteries and has positive and negative terminals)
- Alligator clips (not necessary, any sort of wire will work just as well)
- AC adapter (I used a variable one, you can really use any adapter as long as the voltages match)
- Standard safety equipment (gloves if you're scared of being shocked, water as the sparks could cause a fire)