I definitely like the idea of having two playable games at once. But at the moment neither is fully optimized. Which to me feels like your gamejam would have benefited a lot more if you only focused on one of the games.
However both of the games do have a lot of potential to have a ton of fun. So I would encourage you to finish this jam and polish everything up.
One of the things for me that I would like to see changed. Is perhaps switching between the two modes. Or at least add some form of pause functionality. Having two things going on at once is very difficult for an amateur gamer like me to manage.
I would also love to see the basic enemies nerfed a little. And the main wizard buffed. He is supposed to be an all powerful evil wizard. Yet his attacks are very limited in power and range.