The Black Market in the Jungle

The big secret thing, just like it was in slunky ht, is the black market in the jungle. I've found that just being relatively thorough with collecting money early on, which i recommend anyways. And then going to the jungle and going to the black market and just buying a bunch of good items there. That's definitely better for the rest of the game and less risky than going to the volcano where there's a lot more potential one hit deaths.