Apparently the four bosses in the towers are pretty legendary (read: "Infamous") for having broken HP. The one in the southern tower, that I actually managed to beat after close to an hour, has the highest HP of any boss in the game, but is also the easiest of the four tower bosses. He has 25,000 HP, when the previous boss before these towers has 4500 HP--. The bosses in the east and west towers may only have 22,000 and 20,000 HP, respectively, but they're no easier. The east tower boss is actually potentially the most difficult in the game.
It seems the official guide book for the game in Japan said about the east tower boss, 'If he gets into the party-wide attack loop, you're just fucked.' There's literally no recourse for dealing with these bosses other than to just grind levels until your arms fall off.
It's amazing. This game continues to be even worse than I could have imagined. I have to believe Working Designs must have actually rebalanced the game significantly when localizing, and probably made the script at least more interesting from the Japanese, because I don't think I've ever seen anyone talk the shit about Albert Odyssey that it rightly deserves.
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Dragon Quest IX
I've had a lot of success here. I found a tool online that actually provides the layouts and blue chest locations/ranks for treasure map dungeons, which means I can check to see if they're actually worth going into before spending 20-40 minutes going through it manually. It has supercharged my dungeon delving efforts. I also checked a lot of the maps I already had, and indeed, there weren't any rank 10 chests in any of them. I went back at the lv 96 map I had, and got a really good string of maps with three rank 10 chests each. Got the legendary axe out of the first or second one I opened, which is really nice. I would have kind of preferred the sword or claws, but it still works for my main character.
One of the maps also had the rare boss in it, which drops the Dragon Lord legacy boss map at a 5% drop rate. So I'm just going at him until he gives me the map, and hoping to get Metal Slime Boots out of a rank 9 chest along the way. Once those are in my possession, I have all the legacy boss maps that aren't dropped from other legacy bosses. I'm trying to get all the legacy boss maps before really anything else, because I'm already at about 92 maps in my inventory, and there's a limit of 99 that can be carried. Supposedly the game asks you if you want to drop a map to make room for a new one once at the limit, but if you say "no" for one that comes from a quest, you permanently lose that map from the save.
Otherwise, I'm at 92% of the bestiary (I'm gonna go for 100% on this), and I have all but 10 of the non-weapon quests completed. My main goals feel more imminent now.