Once you have reached the final boss chase scene. A Green timer will continuously tick down. Watch the timer while using peripheral vision to dodge his attacks. (It isn't hard) Count the Timer Exactly 24 times and press R and after doing the QTE (Quick Time Event) Press R again before you reach the top of the screen and you will enter a second QTE skipping one of his phases saving around 20 seconds. This took me 4 hours to Figure out and I am not the original finder of the Glitch. I believe it was found by a TAS Player named Qwerty in 2014.