Here's my unfinished platformer fan-game that's based on Morphcat's NES homebrew game Super Bat Puncher!
I'll never, ever finish this because I need to make a (de/)compression thing for levels.
After pixeling the treasure chest (which does not work) I realized there wasn't enough space on the built-in tilemap (I didn't know the sprite data and map data were shared :'-( )
So instead, I'm working on my own game engine.
The code is pretty damn hideous, though I think it's probably interesting enough to look through. I haven't seen many pico-8 games that are this "traditionally" polished (I am probably overlooking like a zillion things, I haven't been on the BBS in like a year)
Anyway, do whatever the heck you want with it~!!