The clock scene is the end of the game, and it was supposed to play the credits—making this another bug. I appreciate your patience in playing through to the end despite all these issues.
The signal synchronization mechanic was definitely the most frustrating part of development for me. Initially, I made the accuracy requirements perfectly match the goal wave, but it turned out to require too much precision. I loosened the tolerance to make it more forgiving so that I wouldn't have to keep struggling through it myself every time I needed to debug other parts of the game. Later on, I decided to leave it that way for the final production version as well.
Thank you for your review.