Pygame! You love to see it.
This game is really impressive, especially for a solo effort. The melee is pretty punchy and responsive, and gives you generous hitboxes. For the most part everything felt fair. I love the attention to details like the grass tiles and the scrolling parallax. I think the movement controls could be refined a bit but they are servicable and punchy.
The music is quite peaceful and nice, but it sounds like it's clipping or having some audio buffer error thing. The framerate is slow at first but picks up a little bit as you progress. Eventually I got a little too frustrated to continue.
You should be very proud, this is quite a nice achievement.