I’ve only tested it on real hardware (ks2) which is an accelerated model with pi. The game is actually very simple with the menu just playing a mod file and then vid files before launching the games
I do have the original Next, accelerated with pi, but it's been an age since I used it, and I remember hooking it up to a capture card was a ballache, as audio doesn't directly pass down HDMI, so I had to use an older capture device that allows separate audio input.