Yeah I was in an old discussion here about Guardian Force's latency. It's a game I played a lot, both on Saturn and STV. There's some info about the STV and Saturn coding on the Trap15 patch page: http://daifukkat.su/hacks/grdforcel/Ms. Tea wrote:It was patched, and reduced by between 0.5 and 1.5 frames depending on circumstances. I think the real issue is that Cotton/Guardian Force has excessive lag on the Saturn, which means emulator lag on top of the game's own lag was unbearable. I haven't seen anyone definitively measure the late games, but I'd bet the emulator performance is exactly the same - it's just that the games they're picking all had low lag on Saturn, so the total lag is fine for most people.
So I fully expect Guardian Force to be a bit more than the rest. But not as bad as it is, even post patch. I tried the Rayforce demo, and while I found the latency to be noticeable it was still playable in my opinion.
Perhaps I'm just salty because Guardian Force is such a cool game otherwise. I've included it my entry for the yearly top-25 for quite a while now, so I'd love to see it get an awesome re-release.