Hi, some people have had a problem where the game runs in a little quarter of a window!
I'm sure there's a programmer fix for this but I haven't worked it out yet and you can solve it
by running it in low resolution:

Ctrl+click on Cinco Paus, select Get Info, and select "run in low resolution".

See this thread: https://itch.io/t/1367647/new-macos-build-issues-on-retina

Sorry,
Michael