The SPS entry is finally done. SPS is a company that most people know for their arcade ports on the X68000 (most people who know SPS, that is).
I learned a few things writing this: SPS went bankrupt, SPS's president passed away, and M2 acquired the rights to SPS's back catalog, all in the year 2021. I feel like these things were not widely publicized at the time.
I recommend looking at the Japanese Wikipedia article on SPS because it's a lot more thorough than the GDRI entry. Unfortunately, it doesn't cite many sources, so I couldn't include a lot of the information.
(from the Japanese release of Hardball 5 for PS1, which they published there)
