Galaga is one of the most popular video arcade games of all time, but unfortunately the way the boardset was produced, it doesn’t seem to stand the test of time and last very long. The production used poor quality sockets and various hard-to-find chips that had a tendency of corroding and becoming brittle. It’s a real challenge to get an original boardset operating reliably without doing a ton of work, and even then, you’re never 100% sure.
As a result, this is probably one of the games that benefits the most from a “resto-mod” approach of adding a modern emulation board. I demonstrate in the video below how to do a non-destructive mod to an original Galaga game to replace the problematic logic boards with a 60-in-1 multi-card. The game can be restored to 100% original if desired because this doesn’t alter any of the core components. You can also add some extra games that use the same control scheme like other versions of Galaxian, Galaga88, space invaders, etc.