TIFU by Playing Cuphead w/ my 4 y.o. Daughter

First, obligatory this didn't happen today, but last week.

Now, for those unaware, Cuphead is a video game where you run around in a '50's Disney art style game shooting finger guns at opponents to beat them. Before we go any further, I want to preface that there is a kids show based on this game on Netflix, which was her introduction to the franchise.

Now, the game is cutesy looking, but has some mildly darker implications, as the whole premise is that you are collecting the soul contracts of the bosses you defeat to give to the Devil. These undertones aren't anything a child would reasonably pick up on though and honestly is very tame as far as appearances and violence and whatnot.

We got to the last level, which is defeating the Devil, but first he asks if you're going to hand over the contracts per the characters agreement with him from the beginning of the game. I was curious about the result (it was a yes or no answer, which is the only time they offered a choice like this), so I took a second to look it up. It probably would have taken me about ten seconds in total to make sure I didn't make a bad choice here for her sake.

As I am doing this, having warned my daughter to give me a moment to look into it, she starts button mashing and selects "Yes". Spoiler free result: a very creepy end game screen, with accompanying music that made my daughter not want to play the rest of the night. Spoiler full result: the next screen shows Cuphead, Mugman, and Chalice (the playable characters of the game) essentially zombified with spooky expressions, sharp teeth, and fire surrounding them. The title screen music was also creepy when I tried to jump back into it. She refused to play anymore that night, but luckily the next night asked me to help her defeat the Devil. This was only last week, and she's already back to playing it with me, but I still felt pretty bad about it.

Also, for those asking that are familiar with the game, yes of course it's too difficult for her to actually reasonably play, I had cheats turned on for her sake so she could get through the whole thing and have fun.

TL;DR: Played a cutesy looking game with dark undertones with my 4 y.o. daughter, ended up scaring her into not wanting to play the rest of the night.

ETA: For clarifications sake, the show does not follow the same storyline or most plot points as the game, the only part that's somewhat similar (that I can recall) is at the end. Chalice's soul is taken by the Devil, and Cuphead beats the Devil in rock paper scissors to get her soul back. Otherwise, most episodes are standalone entries, and many include run-ins with the various bosses of the game, but without any fights.