The Nintendo Switch eShop version of currently sits at version 1.11 , which addresses a critical bug that previously led to accidental save data loss. This digital version includes platform-exclusive content not found in the original PC release, most notably a secret boss fight with Mad Mew Mew . Current Version Status (v1.11)
The latest software update primarily focused on system stability and user experience: Undertale SWITCH NSP [Update] (eShop)
: Unlocks new visual borders like "Mew Mew Kissy Cutie" and "Super Dog, Hoi" after completing specific in-game tasks. The Nintendo Switch eShop version of currently sits
The eShop version (and updated physical copies) includes several unique features: Undertale SWITCH NSP [Update] (eShop)
: Features modified dialogue and a secret sprite that hints at connections to future titles like Deltarune .