3SRW (SFC): Can the Galgau be defeated in "Nightmare of Solomon"?
I'm playing 3SRW on original hardware, doing a casual playthrough for my first run before I use a walkthrough. I unfortunately failed to save Gato earlier in the game, but I didn't really think anything of it at the time. But now I'm on the mission "Nightmare of Solomon", and the Galgau just isn't dying. I've spent 50 turns on it so far and I can't tell if I'm actually putting a dent in it.
I was under the impression that it has 24,000 HP. I know about its beam coating, so I haven't been healing it. I've had Nu Gundam and Psybuster hammering it with funnels since around turn 4, and Hyaku Shiki, ZZ Gundam, Psybuster, and Nahel Argama all using map attacks whenever they can. I used units with Flash to draw fire until it ran out of its big attacks, and now I've got Daitarn in melee range soaking up its melee hits (and counterattacking for additional damage) while the rest of my team flails at it with whatever they can bring to bear. Based on how much damage Psyflash and Highmega Particle Cannon do when I can see the numbers (700-1000) I estimate I must be dealing somewhere around 2000 damage per turn just from funnels alone... so why isn't the fight over yet?
I have of course looked up every bit of information I can, and I see that I really should have saved Gato so I wouldn't HAVE to fight this beast, but none of the FAQs or walkthroughs mention anything about it otherwise.
(Side question, potentially related: Why does Daitarn have more HP at the start of the turn than it did at the end of the enemy's turn? I didn't think units had passive healing...)