I really like the idea, it reminds me of the commercial game Dandara (which I only played for a little bit, but it seemed really cool). I like the Metroidvania type aspect of this with how you need upgrades to get more upgrades. Controls and the collision are super janky though, and I did get stuck on the bottom screen and had to press F11 to make the screen fullscreen to get out.
Also, it seems more like a game from 2017's dual purpose design theme than an only one theme. But overall, cool concept, great art.