Changed the color of light blue attacks to 00A2E8 (from 42E2FF), to be more visible to color blind people.Added a proper kill animation for Ice Cap when in ice form.Added a third dash to the right of the word 'Instruction' in the game's instruction menu.Changed the Joystick Config menu so that 'JOYSTICK CONFIG' is now bolder, the seasonal message is no longer italicized, and 'Analog Sensitivity Sensitivity' now have spaces in between them.The version number of Undertale was changed.Added a splash screen, which appears to be a stretched 320 × 80px image of the Undertale logo.This version of Undertale was later deemed official on Janu, and was later made available for those who bought the DRM-free version of Undertale on January 21, 2016. Beta testing for Undertale v1.001 began on January 19, 2016, and was only available for those with the Steam version of Undertale. Toby Fox first announced Undertale v1.001 on January 12, 2016.
Undertale v1.001 For images showing the changes, see here. Undertale v1.00 was the first complete version of UNDERTALE that was released on September 15, 2015. Note: All differences on other platforms are from the latest Windows version unless stated otherwise. This article contains a collection of platform and version differences in Undertale.