"That one link in the instructions" http://scratchtale.orgfree.com/items.html README! Project might take a while to load. That's because there is a ton of music inside. A skeleTON. Making Undertale battles was never easier! Follow on-screen instructions to create your own battle in less than 15 minutes (if you are fast enough?) After creating your battle, simply click "remix" to save it!
Thanks to pococikapusta! Welcome to the impossible battle.
