Loved this game! I've played through it three times, and gotten three different endings. (1, 3, and 2 in order). I followed the tips below to try and get ending 4, to no avail. It bums me out a bit, but doesn't take away from what an awesome experience this game was! So full of raw emotion and nostalgia. took me right back to being their age (even if it was only 5 years ago!). A real atmospheric trip. Keep on making. :)
Thanks for playing the game and leaving a comment! A hint for getting ending 4 is that it's quite similar to getting ending 3, but you have to act friendlier/kinder towards Brandon -- like joking around with him and generally being supportive/encouraging.
Thank you for the helpful reply - I finally got ending 4! At first I thought I'd ended up with the 3rd again, but the subtle differences and the little twist at the end warmed my heart! Thank you again for such a raw, honest game. You guys are a talent!