Fully Combined List:
1: Bedfellows
2: [REC] (maybe)
3: Google Play store app demo (adds scary filters for pranks)
4: 2008 Mama short film
5: Grave Encounters
6: an old internet video
7: Ballface (seen here)
8-12: ?
13-17: Eraserhead
18: Marble Hornets
19-27: Silent Hill (film and games)
28-29: ?
30: 2008 Mama short film
31-32:
33: The Gravedancers (2006)
34: Alien
35: Dead Birds
36: ?
37: Resident Evil
38: ?
39: The Dancing Pig
40-41: ?
42: Exorcist III: Legion
43: Paranormal Activity
44: ?
45: This video
46: Sinister
47: A Nightmare on Elm Street (1984)
48, 49: Evil Dead (original, then remake)
50: Marble Hornets
51: Paranormal Activity 3 or 4
52: Sinister
53: ?
54: Mama.
55: Slenderman footage from Moscow (Here)
56,57: Nosferatu
58: Appears to be part of some kind of Chat Roulette prank?
59: The Poughkeepsie Tapes
60: The Poughkeepsie Tapes
61: ?
62: The Exorcist
63: Tarantula (1955)
64: Resident Evil
65: Zombieland
66: Piranha
67: V/H/S 2
68: When Night Falls (Deviantart Page]
70: Bedfellows (same gif as 1)
71: Poughkeepsie Tapes
72: Jeepers Creepers
73: Eraserhead
74: [REC] 2
75: Grave Encounters
76: V/H/S 2
77: Fear (video game)
78: Attack the Block
79: V/H/S 2
80: Blair Witch Project
81: Night of the Living Dead
82-84: ?
85: Grave Encounters
86: Black Skinhead
87: The River
88: Dead Space (video game)
89-92: ?
93: [REC] (Maybe, same as 2)
94: Lifeforce
95: Paprika
96: The Ring
97: ?
98: The Beautiful People (Marilyn Manson music video)
99: The Last Starfighter
100: ?
101: Insidious
102-104: ?
105: Begotten (1990)
106: Old internet video
107-109: ?
110: Witching and Bitching
111: “Little Baby’s Ice Cream”
112: The Poughkeepsie Tapes
113: Poughkeepsie Tapes
114: ?
115: The Convenant
116: Apparently this is some kind of video about sleep paralysis?
117: ?
118: Begotten (1990)
119: The Conjuring
120: Mama
121: The River
122: The Unborn
123: ?
124: Black Swan
125: Grave Encounters
126: Smiley
127: Mama
128-129: ?