Note that this feedback is based on the build(s) available at the end of the jam.
I like the concept here - counterintuitive controls in a familiar game are a not just a fun way to explore how our brains are wired to handle specific input/output loops, but can also give us new perspectives to view those familiar games from.
Unfortunately, the input bindings for the second player are either not working or not what they are documented as, and I feel like I was not able to get the full experience of playing against an opponent who has as much control as I did.
The sources appear to have the up control (the one that's not working) bound to the up cursor key, but unfortunately, I wasn't able to open the project in the version of Godot that I have installed to dig in any further.
Thanks for submitting!