If you are looking for a more traditional 3D experience, you might also consider , a massive ROM hack for Super Mario 64 that features 123 stars and 15 custom courses.
Legal & distribution notes (fan project considerations) If you are looking for a more traditional
: Includes diverse themes, background colors, and a wide array of items like power-ups, keys, and "gizmos" (magnets, trampolines, doors). you might also consider