Checking up former saves while trying to get the other girls's pink hearts (and failing at at...) I noticed some interesting details, I don't think they are too spoilery worthy (then again is kind of hard to me to tell what things can be in general, more so in Takamakuran games, so I flag as spoiler a lot of things just to be safe, I'm sorry if I'm using too much of it when isn't needed.)
You can get the exact G needed to buy explosives if you kill all the monsters and bosses, if you don't spend any G to buy or sell any item.
If you already have the town it will advance its reproduction by defeating all the bosses up to Big wolf or by going up the Tower to 50F, interestingly it will not advance if only the Primary Body and the Water Spouting Organism are beaten.
If you don't have it already, the town can be triggered in some ways: Defeating a Boss, going up the Tower to 50F seemingly does too, and just by entering the spider cave or the snowy zone also triggers it, this one is pretty interesting because the cave and the snow area seem to be places of importance for the Reds, after clearing each zone they carry a save point over there but this doesn't happens in other areas so seems like if Visitor enters the cave or the snow area the Reds activate the town to support him or as a reward of sorts, I thought the town was there for the monstergirls but can be triggered even if there's none in your party or the camp, not sure if its intended in that way.
The escape skill is more efective than Run command, never fails if is used in normal battles but costs 1MP each use.
You can escape each battle minus the Boss/Monstergirls ones, if you escape you can battle most mobs later anyway, however if you escape the fishies in mountain waterfalls they just dissapear, even can trigger the boss area in that way! weirdly enough they are the only mobs that doesn't move and look nothing like fish in the world sprite, looking more like "viruses".