This guide assumes you are running a modified Switch (Atmosphere CFW) or using an emulator (Ryujinx/Yuzu). Installing custom NSP files on a stock, unmodified Switch is not possible. The Retro Revolution: Sonic Mania Plus Switch NSP Update Guide If you’re looking to upgrade your Sonic Mania experience, you aren't just looking for "patches." You are likely looking for the transition from the base Sonic Mania to Sonic Mania Plus . Pure Nudism Complete Gallery.zip File