Here is my 100% Achievement Guide :)
This will explain and show how to get all 10 collectibles, Plus how to get every single ending for a smooth and swift 1000/1000 (Although our main guy could have moved a lot faster right! Lol)
Anyway for this particular ending, you just need to:-
Hold The A Button to hold hands with the ring of people & Then choose the following responses:-
Blue Red Blue
Blue Blue Blue Purple Purple Purple
Blue Blue Blue Red Purple Purple
Blue Blue Blue Red Purple Purple Red Red Red
& Le Voila, Cheevo o Poppo!
Hope this helps :)
Intro - 0:00
Chapter 1 - 1:30
1. Worlds Best Dad - 8:00
Chapter 1 Cont - 8:40
Chapter 2 - 12:40
Collectible 1/10 - 16:20
Chapter 3 - 17:50
Collectible 2/10 - 21:20
Chapter 3 Cont - 22:30
2. Weary Traveller - 25:30
Chapter 4 - 27:00
3. "Here boy..." - 28:05
Collectible 3/10 - 29:00
4. Stuck On The John - 32:55
Collectible 4/10 - 34:30
5. Kind Of Blue - 38:10
Collectible 5/10 - 39:30
Chapter 4 Cont - 40:00
Chapter 5 - 45:30
Collectible 6/10 - 52:40
Collectible 7/10 - 59:45
Collectible 8/10 - 1:03:50
Chapter 6 - 1:04:55
Chapter 7 - 1:12:30
Chapter 8 - 1:13:50
Collectible 9/10 - 1:15:00
Chapter 8 Cont - 1:16:30
Chapter 9 - 1:22:30
6. First Contact (Collectible 10/10) - 1:23:00
Chapter 9 Cont - 1:24:30
Chapter 10 - 1:27:00
Chapter 11 - 1:30:50
Chapter 12 - 1:38:45
7. Resignation - 1:45:55
Chapter 12 Cont - 1:47:30
Chapter 13 (& Remaining Endings) - 2:01:20
8. War Of The Worlds - 2:02:30
9. Resignstion Reprise - 2:03:00
10. Family First - 2:05:30
11. Understanding - 2:08:30