@Dandelion I agree with Folly. If you're sticking with Old Skool games, go with the Pi3b+. It's plenty to run those.

For any other lights, lighted buttons, or other stuff that might pull power from a USB on the Pi. Check if you can source power from something else. The Pi performance will degrade the more power you pull from it...even CPU fans.

Take your time designing and researching. It'll pay off