: Includes a completely new soundtrack, custom enemies, and brand-new boss fights that weren't in the original game.
These are the most common. A creator designs a new set of levels (World 1 through World 8) using the existing mechanics and enemies. The challenge varies wildly, from "Kaizo" (intentionally difficult, troll-heavy levels) to faithful replications of the Nintendo design philosophy. new super mario bros wii mods dolphin
