You can't wait for that cease and desist letter, eh?
Viewing post in 5 Nights At Grek's Hotel (Shrek is fired) comments
He is likely referring to this thread:
https://itch.io/t/2178615/would-i-get-in-trouble-if-i-use-shrek-in-my-game
like from the screenshots here its basically 1 to 1 shrek, donkey and such.
copyright claim very likely