Yes, but don't worry, there are many monsters to keep you company!
Dude bruh. I experienced the same thing.
When I encountered the old guy, my mind was like "is there any way to get that darn old guy to move a muscle?" until I was like "maybe this ice will kinda push him outta the way-" but then "OH NO I KILLED HIM" and then spamming the undo button and then the screen went like "there are things you cannot undo." and then I went "WAIT WHAT THE HECK AAAAAAAAAAAA"