the terible reviews for the nes version are offen blamed on bad timing. there was a large gap between the japanese pc release and the nes version. during this time both zelda 1 and 2 were released. this led to the belief that the game, to ammericans, was a zelda rip-off.
the japanese pc versions featured rendissions of 2 songs by french composer georges bissette, while the nes version's music was a rip-off of the indiana jones theme. (the ladder is actually taken from the sequel, hydlide 2: shine of darkness) Add
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on the nes, this one of only 2 rpgs using mapper 0. (wikipedia.org, keyword Hydlide). Add