I unfortunatly do not see the theme implemented at all. You could maybe argue that the lava grows??
I really hate that you did not credit the assets you used for the visual side of the game and even sold it as yours in the credits. That's really bad manners in the field of art, especially when the assets are free adn well known.
The game itself does not seem to scale with refresh rate. I had to change my monitor to 60hz for it to be playable as it was way too fast and sensitive on 200hz.
Idea is a somewhat fun, basic platformer but please refrain from selling game assets as yours.