Parallel World by Beco is a complete ROM hack released on the game's 20th anniversary in 2021 that takes every level and boss from the original and remixes them from the ground up, drawing on the DNA of the original concepts while incorporating ideas and elements from across the broader Wario game catalogue. Every stage has been redesigned while retaining the feel of its source — familiar Custom cartridge, plug and play. Compatible: GBA, GBA SP, DS, DS Lite..