Yo, is there controller support? I'm ASS at Undertale fights using the keyboard :'(
Technically yes but also no. Using a controller works fine in menus, but you're unable to actually move.
Additionally, by using my keyboard, I discovered that not even the interact and run buttons work in the overworld.
You could probably get around this by playing the game through Steam, by adding it as a non-Steam game in your library (bottom left corner) and changing the controller settings.