>>713419251
>>713419340
If it isn't friend that leaves:
>Alphys (not implausible, if she was doing dark amalgamate experiments in the bunker)
>Susie
>Susie's dad - interesting because King may be based on him and he has the most devil-like tail of any character thus far

Also notably , the intro of Breath of Fire II of all games features the party following a pointed tail made of spheres through a cave and then ending up in a "Dark world". Toby's an old jrpg nerd i could see this being inspiration

https://www.youtube.com/watch?v=9Q-JK6Xa9yc&t=746s

>>528089695
Two of them besides MOTHER games, that I think influenced Delta rune are Wild Arms (especially 2, which features a possessed MC who turns into "knight blazer" , dark depths in the center of the earth, and a "Sword magess" who is kinda similar to the Girl in the prophecy).
https://www.youtube.com/watch?v=kh_RaekPGPM

And recently found out Breath of Fire 2 has THIS sequence involving
>following a pointed tail
>dark world
>goner-ism with the town forgetting you existed
https://youtu.be/9Q-JK6Xa9yc?t=781

>>527956967