Still haven´t finished the game, but just for the sake of planning on how I will complete it, cI would like to know, since you end up losing levels after a Chimera scene, is it possible to end the game even after all their scenes, or do i have to pick and choose which ones I want to see or not???
Getting all the optional chimera scenes is actually required to see the last extra one, so it's encouraged to not miss any - the point of no return for them also has plenty of warning with chances to save beforehand. With all of the chimera scenes, Iustirho's level falls to 10, but that doesn't make completing the game any harder - the levels (and Iustirho getting weaker / more tired) are mainly just there for presentation.