The gamefeel of this is so good, I love the movement, camera shake, particle effects, adn the graphics overall. It feels really polished and invokes curiosity about the world via its atmosphere and vibe and has a nice arcade feel to it.
I think the UI doesn't scale properly on all resolutions adn was very hard to read for me - it just popped up as way too small. I'm also not sure it had quite enough of a feeling of reward/challenge/objective to it to keep me feeling very engaged in what I was doing, but the gamefeel got me through that to the finish line. Thematically I don't see too much 'expansion', but in any case this was a really cool looking and feeling project that you did really good work on.