 Because of the NES's hardware limitations, the English text needed to be very clear and concise to fall within those limitations; many times, different words with the same meaning but with fewer characters had to be used.All symbols and objects were scrutinized by Nintendo of America, who had specific rules on what could be included for North American releases; for instance, any Satanic, Christian, or any other religious, sexual, or drug-related references were not allowed.Since the game's title was deemed too difficult for English audiences to read, it was renamed when it was released in Western markets.