suppermariobroth:

In the data of Super Princess Peach, many unused test rooms can be found. These can be accessed by modifying the game’s code. One of these rooms changes how Princess Peach looks and sounds. When she is standing still, she is invisible; when moving, she becomes a collection of glitched graphics. All her sound effects are replaced with Toad and Mario voices. This was possibly a room that tested out a power-up that was removed from the finished game, with its graphics and sound effects later overwritten, resulting in the glitched appearance.
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