1HP Mod for UNDERTALE.
This mod contain only one data.win file.
Put this in your game folder.
1HP Mod for UNDERTALE.
This mod allow you to stay at 1HP.
For steam version:
Do a right click on your game and go to manage > explore game files
Then, a folder with game files will be displayed. Put the downloaded data.win file (the mod) in this folder.
WARNING: on the first fight against Flowey, dodge all petales three time to avoid a game over.