This is basically just a part of the big thread
about this topic, because its my personal fav out of the suggested mappist formats and i see a lot of recurring approval from other people as well.
(hey puke, i know we already had a discussion about this, but afair your only point was that youre not interested enough in that format, so its not entirely out of question..? thats why im asking again. (and again (and again, until you say yes (or no))))
LunarMagic / Super Mario World
file types - .bps .ips
Using Lunar Magic to create custom rom hacks of Super Mario World. Lunar Magic is completely free and able to load the Super Mario World Rom File. Getting the SMW Rom itself is fairly easy... searching for "smwOrig.smc" on Google gives a lot of results. (Using the (US) Version is recommended)
Since uploading the Rom itself might not be completely legal, it is recommended to use the tool FLIPS
to create a patch file (.bps) and upload that. (patches are legal)
(Older patch-files uses .ips extension)
Everyone else can then use this patch file with the smw-rom to create the working and customized rom, which can be played on a snes-emulator like ZSNES or Snes9x or on real hardware if you have... things to make it work lol.
The format allows n00bs to create their own levels (for OHBs) and also complete games! (for majors). You cannot only do level design, but also pixelist and composing work (because you're able to also change palettes and soundtrack). It also fits within the other botb-formats and the idea of "bits"-battles because... the game is old!! >:)