Somerville

This can be earnt at the very end of the game in Chapter 14. Where you have to solve a Simon Says puzzle. Copy the first two sequences as they announce them but for the third sequence do all blue responses. This will spawn a prison cell in front of you, walk forward. Then put your hand in the coloured holes and use the corresponding ability.

Sequence #1 - blue, red, blue (, , )
Sequence #2 - blue, blue, red (, , )
Sequence #3 - blue, blue, blue (, , )

Blue hole -
Red hole -
Purple hole - +

This is unlocked in the Final Chapter while holding hands with everyone else. Follow the alien's instructions for the first two sequences using the same power that corresponds to the color they sound. The third instruction should be Blue, Blue, Orange. Ignore this and enter Blue, Blue, Blue. The alien's will offer a ball with your family trapped inside. Interact with each light on the ball, using the corresponding power. You will be drained of your powers, but your family will be freed.


This video will show you how to unlock all five endings in Somerville.

00:00 - Resignation
02:56 - Resignation Reprise
05:12 - War Of The Worlds
05:55 - Family First
08:42 - Understanding

But when you get to the holding hands section Do the Following:
Watch Blue Red Blue Pattern and Repeat it.
Watch Blue Blue Red Pattern and reply with Blue Blue Blue.

An Orb with your family Appears, approach it and Click A on each glowing areas and use the power associated with it.

I think Blue Red Blue = Hello/Lets Begin
Blue Blue Red = What do you want?
and Blue Blue Blue = Help
So your basically saying hello and asking for help.

Last chapter, when you reach the 3 giants hold hands (I kept A pressed the whole time) and follow the next sequences:

1. Blue(LT), Red (RT), Blue(LT)
2. Blue(LT), Blue(LT), Red(RT)
3. Blue(LT), Blue(LT), Blue(LT)

Move forward interact left and press LT, interact right and press RT and interact right again and press LT+ RT

Fast Achievements guide:


Timestamps:

00:00 Intro
00:32 Chapter 1+2 + World’s best dad Achievement
02:33 Chapter 3 + 1/10 First Contact
04:12 Chapter 4 + 2/10 First Contact + Weary traveler Achievement
07:21 Chapter 5 + 3,4,5/10 First Contact + Here Boy…, Stuck on the John, Kind of Blue Achievements
13:52 Chapter 6 + 6,7,8/10 First Contact
20:06 Chapter 7 + 8
22:19 Chapter 9 + 9/10 First Contact
24:19 Chapter 10 + 10/10 First Contact
26:07 Chapter 11
27:37 Chapter 12
28:43 Chapter 13 + Resignation Achievement
33:46 Chapter 14 + Resignation Reprise Achievement
35:02 War of the worlds Achievement
35:28 Family First Achievement
36:14 Understanding Achievement
37:06 First Contact Achievement

Te comparto un video del procedimiento para desbloquear este y todos los finales dentro del juego, en la descripción de mi guía se encuentra el tiempo exacto para cada final y los pasos a seguir.