Thanks. I REALLY like your updated volcano graphic. The sprite color changes do look good but I was trying to stick with NES palette (not sure if you were too but it doesn't line up with the specific NES palette I was using, the one in the sprites folder).
I'd have to do some testing on lava speed, though it will be a while before I feel like working on this game again, if at all. If I come back to it I will test your speeds and maybe find a compromise (like making it speed up after a certain delay).
I might use your title screen as the new icon for the game if that's okay (I would credit you of course). I think it's way cooler and more eye-catching than the current one which I threw together in like 10 minutes.