Thanks, Ishi!
And thanks, Fervir. Glad you liked how it turned out!
So I've been doing some stuff here and there. Today I worked on the starting area, which is a blank "space between dimensions". Basically, the game takes place in a big jumbled up maze that can pull things and environments from all through Earth's time and space (which means a lot of rooms, but that can be outside, inside, on fire, snowing, etc.) I suppose it'll mainly just be for variety over actual game mechanics; there's a lot I could do with the idea, but I probably won't get around to really having top-notch level design, haha.
Anyway, I got movement and jumping working OK. Stair-climbing also works pretty well. The idea of this game is to be a Metroid-like with smooth movement, where the game doesn't really get in your way as you traverse and explore the environment. Not sure if I'll be able to pull it off, but it's worth a shot, I think. Not much to show at the moment, but here you go.
I have to work on the GUI some more, but it's OK for now. I'll have to keep iterating it over and over to get something that I'm satisfied with, but I think I have a good core idea for how it should look and work.
Anyway, I'll have to get to work!