"No matter what environment (PC), if it runs well on 60fps, then I will always choose 60fps, without a doubt.

However, at that time, there were lots of PC setups that weren’t 60 fps. There were environments that could set the refresh rate through the program, but there were other environments where you couldn’t. Most PC’s were at a refresh rate slightly higher than 60fps. When that happens, with a one to two second cycle, the periodical scroll of the screen shook erratically and this affected the game experience–which I didn’t like.

In the end, I made it 50 fps because there were no environments at 50 fps. Regardless what environment it’s run on there would be no adverse issues. It’s very important that the movement or motion is consistent no matter what the environment.

At first I had contemplated that it was a refresh rate problem. The environment is restricted, but when I saw how smoothly the game scrolled on 60 fps I thought there couldn’t be any other choice than 60 fps. There were several other people on the Internet who’ve had similar thoughts, but then I saw points like it’s more important to make a fun game than to fixate on the refresh rate. I remember at that time feeling like I finally reached a solution."