In the final fight with Efbee it's possible for him to grab and bite that character's head off, permanently killing them. If three characters die the lone survivor will make a comment but otherwise the ending dialogue will change depending on who survives.

Here are the worst endings with each character surviving alone (the ending will start the same and only change when speaking with Goldryn). I also included what happens when the heart reaches 0 health for anyone curious (I was kind of expecting a bad ending but it's just a game over).

Duo and trio survivals should have differing dialogue but I suspect it's not too different from these but if there is enough interest I may compile those too.
 
0:00 Heart Reaches 0 HP (Game Over)
0:16 Silex Lone Survivor
1:47 Laguna Lone Survivor
3:42 Clyde Lone Survivor
5:31 Charlotte Lone Survivor

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