...In terms of HERTS3 on the Game Gear. I thought the cloud at the top left of my picture was the best looking one I drew. So I copied and pasted it, adding changes to some of them, resizing and rotating some so they didn't look all exactly the same. This is what I ended up with:

As it turned out I didn't actually solve the issue I had with the onion rings after defeating the boss. I think I know what caused it: I was checking one onion ring's collision then. So a simple addition of code to make sure that it wasn't when the milkshake was defeated I think solved the problem. But I wouldn't be surprised if it popped up again.