Before the Legend of the Mystical Ninja, there was simply the Mystical Ninja.
At last, Goemon’s adventures have received localized title screens, hitting the shores as Mystical Ninja. A title screen that would have been included in the Western release.
Ganbare Goemon, Ganbare Goemon 2, and Ganbare Goemon Gaiden have all been updated to Mystical Ninja, Mystical Ninja 2, and Mystical Ninja Saga of the Golden Pipe.
Enjoy the Westernized Goemon adventures.

https://www.romhacking.net/translations/5530/