Navigation:
00:00 - Neutral Route
4:14:06 - Neutral Ending
4:15:57 - True Pacifist Route
9:21:41 - True Pacifist Ending
9:35:17 - Genocide Route
11:38:50 - Genocide Ending
11:41:22 - Post-Genocide True Pacifist Ending
11:42:17 - Hard Mode
11:52:04 - Hard Mode Ending

Neutral Route Bosses:
11:45 - Napstablook
26:40 - Toriel
1:08:22 - Papyrus
1:35:47 - Mad Dummy
2:00:14 - Undyne
2:32:49 - So Sorry
2:53:34 - Muffet
3:29:58 - Mettaton EX
3:53:46 - Asgore
4:01:55 - Photoshop Flowey

True Pacifist Route Bosses:
4:22:43 - Napstablook
4:29:15 - Toriel
5:04:04 - Papyrus
5:43:14 - Mad Dummy
5:58:34 - Undyne
6:53:58 - Muffet
7:17:52 - Mettaton EX
8:32:43 - Asriel Dreemurr

Genocide Route Bosses:
9:52:59 - Toriel
10:06:30 - Glyde
10:23:38 - Papyrus
10:36:25 - Glad Dummy
10:48:15 - Undyne the Undying
11:09:26 - Muffet
11:14:35 - Mettaton NEO
11:25:37 - Sans
11:37:47 - Asgore

Hard Mode Bosses:
11:48:25 - Napstablook
11:50:07 - Toriel