Hi there. I created a "walkthrough" video of the incredible, largely forgotten masterpiece, Atari Gravitar (1982). It's my all-time favorite arcade game and it has kept its appeal through the decades.
This is a video capture of one fully completed game (full loop, game "clocked").
I hope these video(s) give you some good playing tips. It's a video capture of one full game played. I didn't use MAME but AAE Vector emulator, which is the best substitute for the real thing.
Enjoy!
PS: Keep the YouTube annotations on to view tips. Use 480 highest resolution.