I Restored & Repaired This Rare Multiplayer Duel Console --- AF invention

In this video I restore a rare Bandai Electronics FL Gun Professional console. The console as you can see on the video the console is beige even on the box and my de-yellowing method had almost no effect, so I'm sure this was the original color. However it was still unusable because the battery terminal were corroded so badly. The corrosion had even broken one of the terminals. I didn't even bother to test it before opening it up because the terminals were too corroded to conduct the electricity anyways.