Exactly! It's a bummer, as my plan was to use a Raspberry PI to emulate in an original Asteroids cocktail cab. The other games I put in there work well (Space Invaders, Galaga, etc.), but the Asteroids and Asteroids Deluxe just aren't up to par. Sounds like my only real option is to use a PC/MAME that can handle more advanced effects. I recognize that vector games relied on specific monitor hardware to get the desired effects, but as a novice, it just seems crazy that there isn't a good way to emulate 50-year-old visuals on a modern (albeit low-powered) PC and monitor. I'd be happy to forego the glow if I should just SEE the bullets. Maybe someone smarter than me will eventually work out a way to size them up! :)
Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first