The funny heehoo haha mod. For version 1.06 of Skeleton Boomerang.
Instructions for use:
-Use the included patcher on your data.win file for Skeleton Boomerang (make a backup of the OG though!)
-Put the modified data.win file in your game folder
-Play the funny heehoo sans undertale game
Your game folder can be accessed through Steam by going to Skeleton Boomerang > Manage > Browse Local Files