Nice game! I enjoyed collecting the coins, but the boss fight is very hard. Also, the boss spawned inside of me, removing a life instantly. I would also think it should have showed coins needed, to follow the theme better. I like the page, and the description. The only thing I will say is that the artwork should be improved for the big update. It's not bad for the jam though. Lastly, I would like some background music.
From the community, you offered a play for play: /t/6707772/-hardcore-2d-boss-fight-made-by-10-year-old-dev-play-for-play
Here is my GMTK game, /jam/gmtk-jam-2026/rate/4821968