I'm not sure if I will ever do the sequel, but if I ever do, here's the map of day 6 invisible maze:
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Journal 1 - Day 2 Subway
Journal 2 - Day 3 karaoke
Journal 3 - Day 3 Hotel
Left arm - Day 1
Left leg - Day 2 Subway
Right arm - Day 3 Hotel
Right leg - Day 3 karaoke
??? - Day 4 School (Right before the last part with the girl)
Head - Day 5
Innards - Day 6
1-7 Forced occurrences during main storyline, but for reference:
1 - Day 2 (House)
2 - Day 2 (Subway)
3 - Day 3 (Hotel)
4 - Day 3 (Hotel)
5 - Day 4 (School)
6 - Day 5 (Graves)
7 - Day 6 (Hospital)
8 - Day 1 - Last game section before you input the password
9 - Day 2 (House) - Last section right after the tunnel; open the cursed game manually right after exiting
10 - Day 2 (Subway) - The cursed game segment after the cursed platformer. In the room with the beds in the real world.
12 - Day 3 (Karaoke) - 3rd cursed game segment at the north-east house after the flower/belsprout breaks into the house
13 - Day 3 (Karoake) - Right before the stairs to the basement by setting the DS clock to 13th.
14 - Day 3 (Karaoke) - At the basement of the north-west house after getting the flashlight
15 - Day 3 (Hotel) - At the 2nd game segment with a single zombie. In the room with the static TV and upside down regret
16 - Day 3 (Hotel) - At the game segment triggered by the bloody bath tub.
17 - Day 3 (Hotel) - Last game segment, at the maze. In the bloody washroom in the real world.
18 - Day 3 (Hotel/Karaoke) - At the last game segment at the prof's house right before the glitchy wall chase
19 - Day 4 (School) - At the room with the bloody bed.
20 - Day 4 (School) - Downstairs at the chemistry room.
21 - Day 4 (School) - The room next to the washroom where game 5 takes place.
22 - Day 4 (School) - The hall with the pool of blood on the stairs.
23 - Day 5 (Kenta's Grave) - At the last game segment, at the end.
24 - Day 5 (Naoki's Grave) - At the last game segment, right before the well during 0:XX DS time
25 - Day 5 (Grave) - At any of the game segments, at the church, during 1:XX DS time
26 - Day 5 (Grave) - At any of the game segments, at the top left corner, during 2:XX DS time
27 - Day 6 (Hospital) - 1st cursed game segment, during 3:XX DS time
28 - Day 6 (Hospital) - 1st cursed game segment, at the 2nd room of the chase
29 - Day 6 (Hospital) - 2nd cursed game segment, with a red girl running around. Happens at the hallway in the real world.
30 - Day 6 (Hospital) - See picture above
31 - Beat the first 30 minigames.
0212E200-0212E207 are flags for cartridges.