Some people get obsessed with games, some with just a single game. Scott Williamson loves him some Star Castle, an ancient arcade game that could have been on the Atari 2600 in its heyday, but never saw the programming firepower it needed. Now, a few years later, that’s changed. Oh, and it comes on a custom cartridge. To use in a custom Atari 2600 machine. That’s transparent and lights up. Boing Boing has the story.