Okay so, this world + small gfx pack is based around the first four VIPPER Super Mario World hacks (see
http://vip.rgr.jp/sm4wiki/). You might have ran into them but they're usually all over the place without any sort of links to their wiki. People are honestly incapable of using a japanese -> english translator and it's terrible >:
I claim no credit for the sprites at all since all I did was just rip them, fyi, all credit to the VIPPERs
map-wise they're all based around levels from all four hacks, regardless the mislabelled name of the world
The world is 16 maps long iirc, so go ahead. You are required to participate since the bots won't be able to not be idiots on some maps
if you tried this earlier due to me dropping it in irc, this one is updated but still uses the same link, so refresh your cache or w/e and download it again if you must (hint hint 4matsy)
http://f4mi.com/smw/MIX2AA.rarScreenshots:




The gfx pack isn't completely complete by the by, as a note if you want to use it apart from the world. Most obvious when you play stomp mode and are playing with some of those winged creatures