Tip: Bad things to do in the title demo: Enter a door or a pipe, activate a P-switch or a star, complete the level, hit a message block, or die. These will either glitch the music, or force the player into an endlessly looping title level until they reset the game.
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Super Mario World Hacks
Welcome to the hack archive of SMW Central. The BPS patches in the ZIPs are the hacks; to play the hacks, apply the patches to a clean, American Super Mario World ROM using Floating IPS. We do not provide ROMs here, nor do we link to them. For more information, see our FAQ or the forums.