Tip: If you edit Level 0, make sure you also edit Level 100. Both of them are used for the bonus game depending on the level you're in.
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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.