I realize how I can get other endings, I just think having a small icone in the scene selector for places where you have choices would make it a bit easier ^^ but it's a small thing.
And if you reference me replaying in novice it's because I don't want to replay boss in nightmare for those story bits =p (also it's fun to stomp bosses that I had trouble with ^^)
Soft lock happened when I was trying to skip a scene, got stuck on an empty dialogue box and couldn't progress further. I had this happen multiple time with lionel with scenes before and after the slime king boss. Only happened on nightmare