I missed a lot of jumps, I think due to pressing Up while the hero is bouncing. Ended up pretty much holding Up the whole time, which actually works out pretty good. But there’s an opportunity here to create more nuanced controls, like you ought to be able to do a tiny jump by just tapping the button, or hold it in to jump higher. And as cool as the bouncing looks, it really ends up being just a nuisance.
Nice work overall though! Especially those background graphics, that’s just beautiful.