Super Mario RPG - Hyundai Super Comboy Korean Version
So back in the day, Hyundai was responsible for selling Nintendo products in Korea. You can read more about that here: (It's about the Korean NES, but the backstory remains the same)
For whatever reason, most of the Super Comboy games that were released in Korea were the English versions. Mario RPG is one of those games. So as long as you can play Japanese/Korean shaped carts, then you can play this game in English! Battery still seems to be working as the original save files are still there.
****Please closely inspect photos before making a purchase. Thanks!****