Hey hey! That sucks >.< Sorry it's like that for you on Mac :( The problem is that I don't have a Mac myself, and I don't know anyone who does, so I've got no way of testing things on them and no idea how they even work T_T However, the problem with it not fitting on your screen I might be able to help with.
I remember that during the jam, one of my teammates said about locking the resolution/screen size for this game so that we didn't have to spend too much time messing around with UI elements and design to fit different sized screens. So yeah, I think we did lock it to 1920x1080 resolution in the end through the settings in Unity, which should mean that it's not properly resizable for players.
If that is the case, I could try re-exporting the game without that lock on for you :3 That way, you should be free to change the size of stuff in the settings of the game. But, there's no guarantee everything will fit particularly well on the screen still >.< I can switch on the scaling UI option in Unity and hope for the best, but quite often, it still doesn't scale properly and you get bits of the UI here and there that still hang off of the screen and stuff >.< Everything always looks perfect for me when I'm testing, and then I'll end up seeing someone else play and the text box is like 2 inches away from where it should be and stuff >.< haha.
I'm away from home today, but I can try exporting the game again tomorrow afternoon sometime and let you know when it's done :3 Thanks so much for your interest in the game and taking the time to mention the problem rather than just deciding to leave it ^-^