A neat little platformer with spooky vibes.
Sending the player all the way back to the main menu when they lose is a bit rough, maybe consider sending them to the beginning of the current level instead?
The game has a spooky atmosphere. The sounds used were effective, I got startled playing the game.
Remember to give the player a way to exit a game so they don't have to use alt+f4 or the task manager.