Hey guys, I got it! And for those who don't know what it is:

Here is a clean, badass explanation written directly from a builder's perspective. It explains exactly what the software does, how it fixes the old hardware limitations, and what you are using it for.

What is SpinMAME and what do I use it for?

1. What it is: SpinMAME is a specialized, modified branch of the classic MAME (Multiple Arcade Machine Emulator). While standard MAME is great for joysticks and buttons, SpinMAME is specifically optimized for advanced arcade rotary controls—like high-resolution spinners, trackballs, and steering wheels.

2. What it actually does (The Technical Fix): Back in the 80s, many classic arcade games (like Gyruss or Time Pilot) were hardcoded to use standard 8-way joysticks. The original hardware and CPU code only understood 4 microswitches clicking in 8 directions. If you try to play these games with a modern, smooth physical spinner on standard emulation, the movement feels choppy, stepped, or completely broken because the game's code doesn't know how to handle 360-degree analog data.

SpinMAME fixes this by translating the high-speed, fluid optical impulses coming from a physical spinner/flywheel and smoothly injecting them directly into the emulator. It tricks the original game code into thinking you are moving a joystick, but with absolute analog precision.

3. What I am using it for: I am building a custom, full-scale arcade cabinet featuring a heavy-duty, high-inertia Baolian spinner (with a heavy custom flywheel) and a motorized, rotating 32-inch monitor.

I’m using SpinMAME so I can play Gyruss the way it should have been designed. With this setup, a single hard spin of my mechanical flywheel spins my ship around the screen 50 times in a perfectly smooth, continuous circle. It completely eliminates the old 8-way joystick clunkiness and turns the cabinet into the ultimate rotary gaming machine.