Main game complete. Spoilers for boss of 23F and 25F (Names too) within.
[spoiler]23F...EO3, if it's ever made, needs a level like this. I stepped out the door and saw like 12 something FOE symbols appear at once.
My thoughts: "Oh Hell."
Somehow got through the mass my first attempt, then got owned by Colossus.
Second attempt took a bit more time to get through the FOE army, but Colossus was brought down this time. Way harder than that pansy known as Harpuia, that's for sure.
Threw a bitchy fit when I saw what Barrier did. Pandora smacked it with Ice, then got a 1.5k counter in the face and died.
Me: "Ok, maybe X's Iceshot won't get countered."
*Iceshot hits*
*Barrier activates*
*X gets hit for 1.5k dmg*
Me: "You two-timing son of a bitch >_>."
I also saw it's other attacks. Anything not named Destroy killed whomever it hit. Barrier, as mentioned above, meant X and Pandora were going to get an ass kicking into next month.
Somehow on attempt #2, I managed to win with everyone standing at the end. Nectalls, I love you.
24F...one moment where I forgot a Warp Wire and was deep into 24F with no way to heal TP and was near empty on everyone. Somehow I managed to get to where the shortcut was and hightail it back to the Geo Point on 21F before dying

.
I also got reamed by a Evildra in the process. Winner is me.
25F...well, doesn't seem too ba...OHMYGOD Dinolich run away dammit!
Anything using Charge first turn means some kind of one shot attack is forthcoming next.
Had to do some fancy dodging around some FOEs to make it to the final boss. Saved and loaded up on items of course.
Overlord...first attempt at form #1 was a success, but not without death abound (Counters that make the person hitting the boss take a 1.5k dmg hit in return can go screw itself).
Form #2...wasn't too insane.
Then I got owned by an attack that hit random people for like 350+ dmg a hit and just happened to kill everyone because the last attack weakened everyone just enough.
Me: "Party's over bastard. You activated "Anima Zero hissy fit piss off mode."
I swapped Pandora out for Skorne, my debuffing Hexer. Armed Zero (my Ronin) with Youtou and Alpha (my Landsknecht) with Bomb Axe.
Back to Overlord form #1. I was banking on it doing the same actions as before (Fear/Curse chance to entire party turn 1, Phys Counter shield turn 2, Repair turn 3, and Magic Counter shield turn 4).
...It never lived past turn #4 sadly

.
Healed up, took on Overlord form #2.
First turn...
Zero: Dead Law
Alpha: War Cry
Cinnamon: Bravant on Zero
X: Medishot
Skorne: Dampen
It's so called curse-all attack is nulled by Medishot. Joy.
Turn 2 is where Overlord starts getting reamed. Zero + Midareba= 1.5k dmg in total (~500 x3). Alpha does ~600 with Deathaxe. Skorne debuffs Overlord further with Frailty.
Turn 3...oh wait what screw you Overlord. Removed all status effects on itself while also healing for 800+. Big whoop.
By turn 8, Overlord bit it.
Word of advice Overlord...if you use an attack that can lower strength, you might want to use it on people that, you know, actually do damage. Characters like X and Skorne who aren't doing any form of dmg here don't count.
In the post game. Going to wrap up some old quests, then unlock the 6th Stratum for exploring.
Final levels after beating Overlord:
Zero (Ronin)- 50
Alpha (Landsknecht)- 50
Cinnamon (Medic)- 50
X (Gunner)- 50
Skorne (Hexer)- 49
Oddly enough, that was close to where I was at level wise at the time of defeating EO1's final main storyline boss. Only difference...everyone was lv50, not one being a level short and the rest lv50.[/spoiler]