I’ve added Merlin’s Quest to the games archive. You can find it here! It’s also available in the Classic Games section under “Adventure”. UPDATE #2: Game is fully playable thanks to help from a friend. Have fun and enjoy.
Here is a rough English translation I made for the Final Fantasy Explorer button control scheme posted on Square-Enix’s official Twitter account. If you have any corrections or more info please leave a comment. Click for full-size