The HV TIMER (an error is thrown at 02:18) is not an indicative of problems if you're using an SD2SNES or FXPAK Pro. For a real test, you should have this ROM burned into an EPROM, and run it on a standalone cartridge. Aliexpress sell them. I'm going to get one. For now, you can disable the IN GAME HOOKS as I show here (02:34) and it won't report an error in HV TIMER again.