There's openlase https://github.com/marcan/openlase with which you can use the audio output through amplifiers to control galvos of a laser projector.

About 10 years ago a buddy of mine built a home-made RGB laser projector, using a red, green and blue lasers, and dichroic mirrors, and managed to drive it with MAME to run battlezone and some other vector games. The laser projector itself is quite dangerous, and we're probably lucky we didn't end up blind, so I wouldn't really advise doing this.

Battlezone: https://www.youtube.com/watch?v=S2JKr-Vkz8A

SEGA Star Trek: https://www.youtube.com/watch?v=VBALyh1hw5Y

Short clip of the home-made laser projector: https://www.youtube.com/watch?v=-aV0RRmO4gI

Simple rotating cubes demo: https://www.youtube.com/watch?v=OHbsrLW-iag

Running Word War vi via the laser projector: https://www.youtube.com/watch?v=cek1QaNc0Kk

If you look in the Word War vi source, here: https://github.com/smcameron/wordwarvi/blob/master/wordwarvi... and search for "openlase", you can see how it uses the open lase library.

Here's a fork of MAME hacked up to use the laser projector:https://github.com/jv4779/openlase-mame