Big Bang Age:Dungeons

There are towers in some of the maps. You can take one party, up to six people, and go through all the levels of the towers for extra xp to make them stronger. Of course they then need time to recover before being available for use so one should be careful about using the towers. If everyone's stamina runs out at a floor, you can't attack anymore until all your enemies have used up their stamina as well. Afterwards, both parties can attack again.

Sekigahara - Ancient Well
Clearing this dungeon is necessary for the character clear of Murakumo Shizuri.

Hard mode
Floor 1: 2x monkey, dog, cat, panda, ninja

Floor 2: 4x snail

Floor 3: 4x rat, snail

Floor 4: 2x rat, 2x bat

Floor 5: 3x rat, 2x bat

Floor 6: 5x bat, golden bat [doubled attributes of a normal bat]

Floor 7: 3x ninja

Floor 8: 5x ninja, white ninja

Ika/Iga - Ninja Mansion
You can access to this dungeon by acquiring a dead sparrow in an event in Kyou after conquering the NPI.

Clearing this dungeon is necessary for the character clear of Watari Hanzou.

Hard mode
Floor 1: 6x ninja

Floor 2: 4x ninja

Floor 3: 6x ninja

-Alarm clock obtained.

Floor 4: 4x ninja [blue]

Floor 5: 6x ninja [1x white, 2x blue, 3x black]

Oosaka - Umeda Undercity
Clearing this dungeon to the 3rd floor is necessary for the character clear of Negishi Nanana.

Hard mode
Floor 1: 4x male student, 2x female student

Floor 2: 3x male student, 3x female student

Floor 3: 4x gang member

-Legendary Bloomers obtained.

Floor 4: 2x gang member, 2x male student, 2x female student

Floor 5: 2x soldier with gun, 2x male student, 2x female student

Floor 6: 2x kansai male student, 2x kung-fu man, 2x motorcycle gang member

Floor 7: 2x kansai male student, 2x kansai female student

Floor 8: 2x kansai male student, 2x kansai female student, 2x gang member

Floor 9: kansai male student, kansai female student, 2x gang member, 2x soldier with gun

Floor 10: 2x kung-fu man, 2x panda

Floor 11: 4x gang member, 2x motorcycle gang member

Floor 12: 2x kansai male student, 4x kansai female student

Saporo - Ice cave
You must station Zanma Gou in Saporo to have him discover the cave.

Clearing this dungeon is necessary for the character clear of Hotta Daigo.

Hard mode
Floor 1: 2x rat, bat, cat

Floor 2: 3x bat

Floor 3: 5x bat

Floor 4: 2x bat, weird alien creature [HP: 42, ATK: 102, HIT: 36, EVA: 29, middle ranged demon]

Floor 5: 2x weird alien creature, bat

Floor 6: 2x weird alien creature, demon

-Hotta Daigo obtained.

MOO! - Ancient ruins
You must station Zanma Gou in Moo to have him discover the ruins.

Hard mode
Floor 1: Moo

Floor 2: 2x Moo

Floor 3: 3x Moo

Floor 4: 4x Moo

Floor 5: 5x Moo

Floor 6: 6x Moo

Floor 7: 5x Moo, fly rider

Floor 8: 4x Moo, 2x fly rider

Floor 9: 2x Moo, 3x fly rider, panda

Floor 10: 2x Moo, 4x fly rider

Floor 11: Moo, 5x fly rider

Floor 12: Moo, 5x fly rider

Floor 13: 5x Elf [HP: 28, ATK: 15, HIT: 139, EVA: 14, long ranged holy creature], bunnygirl [HP: 23, ATK: 1, HIT: 33, EVA: 0, short ranged holy creature]

Floor 14: 5x Elf, crabgirl [HP: 33, ATK: 24, HIT: 104, EVA: 0, long ranged dark creature]

Floor 15: 5x Elf, chaingirl [HP: 46, ATK: 30, HIT: 99, EVA: 16, middle ranged holy creature]

Floor 16: 5x Elf, ghostgirl [HP: 36, ATK: 38, HIT: 99, EVA: 0, middle ranged dark creature]

-Leloir obtained.

Shiname - Hirasaka Underworld
Clearing this dungeon to the 20th floor is necessary for the character clear of Great Emperor Mu.

Hard mode
Floor 1: 3x male student, 3x girl student

Floor 2: 4x gang member, 2x motorcycle gang member

Floor 3: 4x arabian soldier, 2x soldier with gun

Floor 4: 4x male kansai student, 2x female kansai student

Floor 5: 5x ninja

Floor 6: 4x Transylvanian bear soldier, 2x Transylvanian archer

Floor 7: 2x ninja, 4x ninja [black]

Floor 8: 4x Transylvanian archer

Floor 9: 4x ninja [blue], 2x ninja [black]

Floor 10: 4x kung-fu man

Floor 11: white ninja

Floor 12: 2x Transylvanian bear soldier, 2x vampire

Floor 13: 4x vampire

Floor 14: 2x Transylvanian bear soldier, 2x Transylvanian archer, 2x vampire

Floor 15: 4x Elf

Floor 16: white ninja, demonfolk

Floor 17: 6x pirate with gun

Floor 18: 4x crusader

Floor 19: 6x crusader

Floor 20: 2x crusader, 2x crusader archer

-Black Onyx obtained.

Floor 21: 6x crusader archer

Floor 22: 3x demonfolk

Floor 23: rat

Floor 24: 4x panda

Floor 25: 2x kung-fu man, 2x crusader archer, 2x demonfolk

Floor 26: 3x white ninja

Floor 27: 6x fly rider

Floor 28: 3x rat

Floor 29: 6x bat

Floor 30: 6x snail

-The Devil / Satan Obtained.

Floor 31: 6x crusader

Floor 32: 4x white ninja

Floor 33: 4x demonfolk, 2x white ninja

Floor 34: 6x white ninja

Floor 35: 4x weird alien creature, 2x demon

Floor 36: 4x polar bear [HP: 85, ATK: 33, HIT: 96, EVA: 26, short ranged demon], 2x demon

Floor 37: 3x squid

Floor 38: 6x polar bear

Floor 39: 4x polar bear, 2x squid

Floor 40: 2x polar bear, 2x weird alien creature, 2x squid

Floor 41: 2x red demon [HP: 71, ATK: 56, HIT: 91, EVA: 26, middle ranged demon], 2x polar bear, 2x squid

Floor 42: 5x red demon

Note: You're never going to finish this dungeon, unless you're a cheater. Just buff up Mac, give him the Button of Aegis, bring a healer like Sonnet (he will heal after every floor) and other units that provide buffs (ie Tomoka, Saito, Saki). He is completely capable of killing every unit in one run like this.Going deeper than the 20th floor is simply not worth it.