100% Video Walkthrough [All achievements]

1st Run [Friendly Difficulty]
Hotel
04:26 - Keycard
04:38 - Medallion [1/2]

Stage 4
06:55 - Achievement Learn Your ABCs
08:25 - Blue Circle Key
08:50 - Sound Stage Map
09:27 - Cheat Tape [1/11] + Achievement Scratched
11:02 - Orange Square Key
11:14 - Letter Block [1/7]
11:54 - Letter Block [2/7]
12:22 - Letter Block [3/7]
13:55 - Letter Block [4/7]
14:21 - Glasses + Achievement Looking in the Mirror [1/3]
14:28 - Letter Block [5/7]
14:51 - Letter Block [6/7]
15:34-15:47 - Achievement It Doesn't Work
15:58 - Achievement Looking in the Mirror [2/3]
16:07 - Letter Block [7/7]
16:10 - Achievement Looking in the Mirror [3/3]
17:28 - Crank

Hotel
18:15 - Achievement Hospitality
18:33-18:43 - Achievement Sugar Rush

Sewers
21:46 - Metal Piece
23:07 - Power Source
24:14 - Basement Map
24:31 - Punch Card [1/3]
24:36 - Punch Card [2/3]
24:46 - Punch Card [3/3]
25:31-25:56 - Cheat Tape [2/11]
26:42 - Lockbox Key
26:53 - Fuse [1/5]
27:35 - Fuse [2/5]
29:03 - Fuse [3/5]
30:27 - Fuse [4/5]
31:46 - Cutter
32:58 - Cheat Tape [3/11]

MFN Studio Offices
33:42 - Velvet Mask [1/5]
35:43 - Velvet Mask [2/5]
37:06 - Offices Map
38:02 - Cheat Tape [4/11]
38:25 - Game Piece
40:41 - Red Diamond Key
41:26 - Reel [1/3]
42:21 - Velvet Mask [3/5]
43:35 - Velvet Mask [4/5]

Sewers
44:28 - Pump Piece + Achievement A Purging Tide [1/2]
44:38 - Reel [2/3] + Achievement A Star of Light [1/3]

MFN Studio Offices
46:23 - Achievement A Star of Light [2/3]
47:51 - Dice x9
49:11 - Tank
50:14 - Achievement A Star of Light [3/3]
54:05 - Front Door Key
54:10-54:22 - Cheat Tape [5/5] + Achievement Worn O11t
57:02 - Achievement A Breath of Fresh Air

Garden
58:01 - Garden Map
1:00:49 - Green Triangle Key
1:01:25 - Battery

Sewers
1:02:42 - Medallion [2/2]
1:02:58 - Reel [3/3]
1:03:17 - Film Developer
1:04:04 - Achievement A Purging Tide [2/2]

MFN Studio Offices
1:07:45 - Trumpet Polish
1:09:50 - Cheat Tape [6/11]
1:09:58 - 5 Mask Solution

Garden
1:11:30 - Battery
1:12:18 - Dog Food + Achievement A Dog's Best Friend [1/2]

Stage 4
1:12:43 - Cheat Tape [7/11]
1:13:23 - Cheat Tape [8/11]
1:14:08 - Playground Key
1:14:42 - Fuse [5/5] (Code - 1:08:47)
1:15:03 - Velvet Mask [5/5] (Solution - 28:22)
1:15:48 - Cheat Tape [9/11]

Garden
1:16:40 - Peg
1:17:05 - Weed Killer
1:17:43 - Achievement A Dog's Best Friend [2/2]
1:38:54 - Chemical

Stage 5
1:20:42 - Achievement Treasure Hunt

Penthouse
1:28:31 - Cardboard Key
1:28:44 - Purple Pentagon Key
1:29:12 - Puzzle Piece [1/4]
1:29:22 - Penthouse Map
1:29:46 - Puzzle Piece [2/4]
1:30:51 - Puzzle Piece [3/4]
1:31:25 - Puzzle Piece [4/4]
1:31:45 - Achievement Music for Four Hands
1:33:23 - Cheat Tape [10/11]

The Unfriendly Neighborhood
1:39:42-1:43:12 - Achievement Mercy
1:42:44 - Cheat Tape [11/11]
1:45:10 - Achievement Morning
1:45:10 - Achievement One More Season
1:46:45 - Achievement Streamlined
1:46:45 - Achievement Reckless
1:46:45 - Achievement Tapeless
1:46:45 - Achievement Simplicity
1:46:45 - Achievement Basic Training
1:46:45 - Achievement Survivor
1:48:04 - Achievement Passing Grade
1:48:04 - Achievement A Student
1:48:04 - Achievement Honor Roll
1:48:04 - Achievement Somewhat Impressive!

2nd Run [Veteran Difficulty]
1:52:01 - Achievement Unfinished Work
1:52:57 - Achievement Slightly Staggering!
1:52:57 - Achievement Soundly Shocking!

3rd Run [Unfriendly Difficulty]
1:55:37 - Achievement The Trusty Wrench
2:01:49 - Achievement Loquacious
2:42:10-2:44:33 - Achievement Resurrection (Tip: Green Soda will speed up the battle significantly)
2:46:19 - Achievement Canceled Yet Again
2:47:59 - Achievement First Mission
2:47:59 - Achievement War Hero
2:47:59 - Achievement Commando
2:18:12 - Achievement Simply Stupendous!

Neighborhorde
Note: 45000 points is enough for S rank
3:28:53 - Achievement Neighborhorde Veteran
3:29:13 - Achievement A Powerful Point
3:31:09 - Achievement Pure Rhetorical Power
3:42:39 - Achievement Neighborhorde Family

4th Run
3:56:00 - Achievement Cheater's Reward
3:57:38 - Odd Key
3:58:26 - Achievement Final Mystery