I'm starting to feel like I might be coming down with something...
Have a trade pending for a Flash Gordon, which will be my first Bally Fever game.
I have a Black Knight and agree that the simpler games are more approachable when you're not up for a longer experience. There is something very pleasurable in making a few good shots on these games that is energizing, even if your actual game score is not great.
And I love alot of the electronic algorithmic sounds from this era which are constantly changing based on score, play time, etc. Reminds of classic 70's sci-fi movies.