The Past - Chapter 1
1 - Behind The Mask [UNMISSABLE]
2 - Bone, Flesh And Blood [UNMISSABLE]
3 - The Past Has Changed [UNMISSABLE]
4 - Catch Me If You Can
After looking at the critter picture, press on the critter
Now go to the rose in the vase and press on it until the critter flies away
After the vase breaks, the critter will be on the lantern at the mirror, press on it
5 - You Know What To Do
After looking at the picture of the crow and pressing on it, look at yourself in the mirror again
6 - The Devil
After corrupting Albert's corpse, check in the grave again for the tarot card
The Past - Chapter 2
7 - Ear On The Inside [UNMISSALBE]
8 - Dead Eye [UNMISSABLE]
9 - Rooted In The Past [UNMISSABLE]
10 - Breaking In
Trap the critter inside the hidden compartment of one of the gears
11 - Victor
Spam the keys on the piano
12 - Hidden Treasure
Put in the gems without any false placement
The Future - Chapter 1
1 - Who Is That [UNMISSABLE]
2 - The Year Of The Future [UNMISSABLE]
3 - The Future Is Ever Changing [UNMISSABLE]
4 - Checkmate [UNMISSABLE]
5 - A Tooth For A Tooth
Finish the teeth puzzle only after having hit the next tooth after the other player obtains the tooth
6 - Squeek
Press on the mouse whenever you see it
The Future - Chapter 2
7 - All Ears [UNMISSABLE]
8 - There Will Be Blood [UNMISSABLE]
9 - Branching Out [UNMISSABLE]
10 - Frankenstein [UNMISSABLE]
11 - No Way Out
Repeatedly press on the mouse running around
12 - Harvey's Song
Play Harvey's Song on the radio (97.0 very precise) then look at the mirror
Source: https://steamcommunity.com/sharedfiles/filedetails/?id=2883519396