Hey, thanks for your feedback and the video. We're glad to hear you had fun.
We have already reworked the use of the light switches. That should work better in the next version. The ghost that is currently in the game attacks as soon as a ghost is selected in the grimoire. Regardless of whether it was right or wrong. But you read correctly.The attack can be interrupted if the ghost is hit with the iron pipe (small spoiler for the next update: not all ghosts behave like this). However, we have now added a sound that plays before the ghost attacks. So it doesn't come completely out of nowhere anymore. There will definitely be something for the dead players in the future.