This is a super great entry; the gameplay of both modes are fairly intuitive and easy to pick up. I'm always a big fan of good pixel art, and everything felt smooth and polished. Definitely a 5-star entry!
Minor nitpick: in Control Swap, it might have been nice to get some sort of visual indication of what the controls have switched to each time. Even with that it would still take effort to get used to each swap so I don't think it would make the gameplay feel any less "out of control".