Uploaded February 2019 | Updated September 2026, 21 minutes ago

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In Sonic 3, Mushroom Valley is affected by a decompression bug that is caused by invalid pointers. Although I forgot to explain it in the video, this makes the pointers point to valid Azure Lake tile data and circumvents the glitch.

Act 1:
TW0A-L148
TW0A-L15C

Act 2:
TW0A-L150
TW0A-L154