Luckily the problem was smaller than I thought, and I've already fixed almost all the bugs caused by switching to the new version of gamemaker. I also managed to update the waterfall encounter a bit. Here is the updated final attack.

Some of the old sprites will be changed

(This is what Sans looks like now

Made by Me , @Samieru and @Arturio9723 )

I don't have too much news.

chara!!

New demo tomorrow!

https://youtu.be/u0kEujCtE_E?si=WP_Jzh-udVRL3kn6

Sans If He Actually Did His Job

My game for sp!dusttale gamejam released

Here is first patch for new demo.

Undertale, but nothing's wrong.

updated gameover