I like that you went with the idea of roles within the game being swapped, as if the players are the ones reversing roles rather than the roles of two things being reversed.
I like the art style, however, it was kind of difficult to differentiate background tiles from foreground tiles that I could stand on, which I don't know if that was purposeful. Something else with the presentation is that the window is a fixed size, and it was actually too tall for my monitor so I couldn't see the bottom of my screen.
I think the execution of this is great though, the platforming is fun and responsive, and chasing someone around is interesting. Good Submission