Finding Brass Banshee

Brass Banshee can appear on any floor. The source first encountered him on Floor 6, then Floor 7, and again on Floor 13.

If you choose to fight him after the Corona Building has fallen, it might take a few battles before he appears, or he might be present in the first battle.

He can be found in the area between the fallen building and Il Migra.

You can fight him on foot inside the Corona Building, but the easiest option is to wait until you have your tanks.

Fighting on foot, the Brass Banshee's single tentacle attack did nearly 300 HP damage with no protectors (your party at level 17). Some attacks hit, others caused no damage.

Using the Signal Transmitter on him and running away before he could do too much damage was attempted, but once outside, there was no signal, making it pointless.

Fighting him in tanks (Tiger, Mosquito, and Van, with the party at level 17 and 18) outside the battle took only one round, with two piercing shells and one main cannon shot. This may have been a matter of luck.

There is a theory that the HP of this monster varies, similar to the price of the Abrams tank being a matter of luck. Some found him hard to defeat despite good tank weapons, while others found it easy.

There is also a theory that he may lose some HP when the Corona Building collapses, but there is no evidence to support this. Access to codes might reveal his exact HP at different locations.

Another battle took longer with the same tanks and similar party levels, indicating a definite random factor in his difficulty.

You can access Il Migra before fighting Brass Banshee to upgrade and modify your tank equipment if you are having difficulties.

In Il Migra, you can buy Earplugs which guard against noise-based attacks.