Roms Snes: Super Nintendo ((free))

Playing via emulation (on a PC, phone, or mini-console) offers conveniences the original hardware never could. Save states allow you to save anywhere, a godsend for difficult RPGs or platformers. "Rewind" features let you undo a bad jump instantly. Fast-forward buttons speed up grinding in Dragon Quest . Furthermore, upscaling on a 4K monitor looks incredibly sharp, avoiding the blurriness of old CRT TVs or the high cost of modern upscalers (like the Retrotink).