Sorry, I think its called light weight material, but lemme double check. I think its the byproduct when you combine dimunation dust and salt to get diamond and the other thing. (the other thing is what I'm asking the use for lol)
I have to say, even though I haven't completed it yet, it is a fantastic game. The idea of the game isn't original, but it doesn't need to be. The Binding of Isaac, Legend of Zelda, and Ancient Dungeons all have a similar "go into room, fit monsters, get upgrades," But something about the way this game does it, is just so different and cool that I find myself playing over and over again, regardless of how many times I die to stupid enemies or my own stupidity. This is a fantastic game, and with some lore sprinkled in there, a bit of restructuring the health and healing system, I think this could genuinely go mainstream. Also, while I'm here, I might as well say this. Not only is the game astonishingly high quality even for Itch.io, but the creator of this game is an amazing person as well. I don't know them personally, but if you take 5 seconds to scroll through the comments, you'll see he's responded to most, if not almost all of them. He is incredibly nice (from what I've seen through his responses) and is extremely patient with the people who enjoy his games and like to ask questions. Sorry for the rambling, it 10:17 at night right now, and I'm going to bed. Thanks again for the amazing game, and I hope to see more projects from you.
(for lore, you could totally make it like some kids dad had this game, and he was a collector, so he bought this arcade machine or smthn. Idk, just an idea)
I don't know about MV, but for me it also says the negative health (I.e Bat -2/2), But the enemy still dies. I don't know if that helps at all, but yea.
awesome game!