Ok, once I actually stopped and leveled a bit in the final leveling map, got some good skill cracks and made some high level demons the final map was pretty normal.
Once you get:
-MP regen after each battle
-Revive
-and Heal everyone to max + status ailment
on all 4 characters...it makes it a lot easier!!

Before with my underleveled party of low-level demons I was always just rushing the boss and trying to kill it in a round or two before the demons caught up to me and murdered me. With those skills/spells your party can just take it nice and slow and fight anyone in their way and heal back to full afterwards. Wasn't too bad although the very final final form went crazy when he was down to about 1 hit left and instant wiped 2 of my chars, lol. But then I killed him in 1 hit after and got the ending, yay. Did the Amane path because I accidently told Gin and Kaidou to fuck off at the last minute and lost their paths. Amane's no Haru, but she's cute enough. I usually go with whichever girl is cuter when choosing my megaten philosophies. Except for SJ, because the blond in that game was wtffff by the end.
Overall I thought the game was really great. 9/10 for sure. Not as good as SJ, but pretty close and up there with the better megaten spinoffs. The story was interesting although it got a little too ridiculous non-stop plot-twisty near the end. The characters were cool although some of them got annoying at the end. The visuals/music atmosphere rocked. Character designs were sooo good. And the gameplay did a great job at taking everything that makes megaten and transferring it to the srpg realm.
Things I would like to see fixed/changed in the sequel:
-Skill crack system. It's kind of cool, but it's also kind of dumb because it makes you play like an idiot sometimes because you don't want to kill someone else's target. Need to streamline it a bit.
-Better UI. Other than search function, the UI was crap. Like is there even anything that shows how close you are to getting a skill set bonus? I remember when it was introduced they said it's a meter that fills or something but I never found it visually. Just would randomly get skill sets.
-A little better branching consistency. By the end there was a lot of repetition in conversations that I'd already had with someone else and the MC didn't acknowledge that.
-maybe some actual multi-screen dungeons
-A game timer
But overall it was great.
Now I'm ready for ACE R tomorrow, yay!