00:00 Once Upon a Time
01:28 Start Menu
02:00 Your Best Friend
02:24 Fallen Down
03:22 Ruins
04:54 Uwa!! So Temperate♫
05:51 Anticipation
06:13 Unnecessary Tension
06:30 Enemy Approaching
07:27 Ghost Fight
08:23 Determination
09:14 Home
11:18 Home (Music Box)
13:20 Heartache
15:09 sans.
15:59 Nyeh Heh Heh!
16:32 Snowy
18:16 Uwa!! So Holiday♫
18:46 Dogbass
18:53 Mysterious Place
19:37 Dogsong
20:15 Snowdin Town
21:31 Shop
22:21 BoneTrousle
23:19 Dating Start!
25:16 Dating Tense!
25:42 Dating Fight!
26:18 Premonition
27:20 Danger Mystery
27:38 Undyne
28:24 Waterfall
30:31 Run!
30:59 Quiet Water
31:30 Memory
32:45 Bird That Carries You Over A Disproportionately Small Gap
33:10 Dummy!
35:57 Pathetic House
36:15 Spooktune
36:39 Spookwave
37:05 Ghouliday
37:17 Chill
38:14 Thundersnail
38:56 Temmie Village
39:54 Tem Shop
40:39 NGAHHH!!
42:01 Spear of Justice
43:57 Ooo
44:12 Alphys
45:37 It's Showtime!
46:23 Metal Crusher
47:26 Another Medium
49:48 Uwa!! So HEATS!!
50:23 Stronger Monsters
51:25 Hotel
52:53 Can You Really Call This A Hotel, I Didn't Receive A Mint On My Pillow Or Anything
53:55 Confession
54:37 Live Report
54:55 Death Report
55:42 Spider Dance
57:29 Wrong Enemy !?
58:27 Oh! One True Love
Sorry, I tried to get oh dungeon to be timestamped
1:00:24 It's Raining Somewhere Else
1:03:12 CORE Approach
1:03:27 CORE
1:06:14 Last Episode!
1:06:21 Oh My...
1:06:35 Death by Glamour
1:08:50 For the Fans
1:10:36 Long Elevator
1:10:57 Undertale
1:17:18 Song That Might Play When You Fight Sans.
1:18:21 The Choice
1:20:33 Small Shock
1:20:47 Barrier
1:21:18 Bergentrückung
1:21:38 ASGORE
1:24:16 You Idiot
1:24:50 Your Best Nightmare
1:28:51 Finale
1:30:43 An Ending
1:34:12 She's Playing Piano
1:34:30 Here We Are
1:36:37 Amalgam
1:37:58 Fallen Down (reprise)
1:40:28 Don't Give up
1:42:30 Hopes And Dreams
1:45:31 Burn in Despair!
1:45:33 SAVE the World
1:47:46 His Theme
1:49:51 Final Power
1:50:10 Reunited
1:54:55 Menu (full)
1:55:27 Respite
1:58:21 Bring it in, guys!
2:01:33 Last Goodbye
2:03:49 But the Earth Refused to Die
2:04:22 Battle Against a True Hero
2:07:00 Power of "NEO"
2:07:30 MEGALOVANIA
2:10:07 Good Night

Credit to Toby Fox