Timestamps:
Intro: 0:00 - 1:27
Main Gameplay: 1:27 - 2:25
Challenge Stage Introduction: 2:25 - 3:40
Stages 6-9: 3:40 - 4:23
Boss Stage Introduction: 4:23 - 6:57
Stage 11-19 Montage: 7:08 - 8:13
2nd Boss: 8:13 - 11:03
Subchapters [Not important for now]: 11:09 - 11:27
Stage 25: 11:52 - 15:08
Stage 26-28: 15:08 - 15:24
Stage 29: 15:29 - 17:05
Final Stage: 17:05 - 20:08
PHASE 2: 20:08 - 20:44
Defeating Doombringer: 20:44 - 20:55
Outro: 20:55