Tip: Avoid "item babysitting". Do not force the player to drag P-Switches or springboards all around the level. This is not fun, nor does it make for interesting "puzzles".
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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.