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During the development of The Legend of Zelda: Twilight Princess for the Nintendo GameCube, Nintendo made the decision to port the game to the Nintendo Wii as well. Shigeru Miyamoto had noted that most people preferred using the Wii Remote with their right hand, regardless of their dominant hand. Unfortunately, the game was far enough ahead that all the major parts had been designed for left-handed Link. The most effective solution was to simply flip the entire game world around. This meant that Link would be right-handed, and all the puzzles and bosses are accomodated to a right-handed player.

As such, the map in TP Wii and TP GCN are mirror images of each other. This means that if you go WEST in TP for the Wii, you need to go EAST in the GCN version.