A couple of days ago my little brother was playing Super Mario World with me and he asked if there was any way to make a Halloween themed SMW with everything given "Halloween spirit". Although I could download the few Halloween themed ROM hacks on this website, I would really like to impress my brother by making one. The only problem being I have no clue where to start and have really no idea what to do. I have some experience helping someone put their football team into "Tecmo Bowl" for the NES, everything that has to do with SNES seems different. Could somebody give me some info as to where to get started?