A niche but fascinating category. In the early 2010s, developers released WADs for games never finished, like Super Mario 64: Green Stars or debug builds of popular titles. These are collected into "rarity packs."
Installing an official WAD was simple: download from the Shop Channel, and the console’s System Menu would install it as a new channel on your home screen. It was seamless, family-friendly, and—until the shop’s closure in 2019—fully legitimate. wii wad pack