http://treeki.shacknet.nu/romhacking/NSMBe4.7.zip I attempted to make a level similar to Yoshi's Island 2 on Super Mario World. Although I got a lot of stuff wrong the editor is pretty straight forward but there's so many different things its kinda confusing a level editor for NSMB Wii is also in the making called "Reggie!". interesting found a NSMB DS hacking community website, although not very active. I'm sure there are patches there. I'm allowed to link to other sites, right?