To the two dudes above (as of writing this):
1; There's not much point in changing the values of the game to have a bunch of HP & Attack when all you've gotta do is tap the attack button at the right time over & over to keep them in a stun lock. Along with that, you can just start a new save file and run through every section, hit every checkpoint to save the location, then you'd be able to teleport at your leisure. Game isn't too horribly long to do so, and if you don't want to, then I dunno what to tell you other than buckle up for future updates.
2; Just get hit during the attacks that flash red to get most of the animations, and lose all your health to the specific enemy you want to get the CG for. That also goes for the bosses, just get hit by their attacks enough to lose & you'll get the option for the CG. The gallery for the in-game animations is broken right now anyway, so you'd be wasting your time opening it for those; Only the CGs work right now. (I don't know if that's just my game or not, so check that out yourself just in case this old geezer is wrong.)
Y'all are either just ignoring the fact this game is way easier than a lot of other game similar to this or just want the easiest way out. It's not like this is Goon Souls, people.