This is one of the coolest, most unique systems I've seen in the game. I really love your implementation of the theme, and the bosses are both designed really well. I'm also glad that normal mode is a thing because I struggled enough on the one seagull boss, so I don't think I'll ever beat the double. For feedback, I didn't really notice the music during the battles, and I feel like a potentially better way to do the steering would be to have the wheel in a fixed position, and just have it rotate based on if your cursor is turning clockwise or counter-clockwise, with the wheel still spinning, so you can confirm what's happening. That's definitely harder to implement though, and for a jam entry what you have works just fine. Great job, and good luck in future jams!