Thanks for appreciating the trees, I feel like they're one of those mundane things that are a real pain to pixel but also almost unavoidable. I think I spent more time pixeling trees than any other singular object if you count the trees that didn't make it into the game, hah. And you are completely correct, MOTHER 3 And LSD Dream Emulator are big influences in my work and here especially.
I'm going to have to do some serious collision bug testing when I release my next version... I have a hunch I know what caused those bugs though so hopefully it won't be so bad. The escalators in particular were a big hurdle in bug testing - juggling automated diagonal pixel movement, well... it has its challenges.
I do have plans to continue to expand this project! It'll probably be a bit before I get my next version out because I want to smooth out some rougher parts in the foundation, but there's too much here already for me to not want to finish it. ;)