Running on MacOS Moiave 10.14.6 - The version in the charity bundle.
The game opens fine, allowing you to pick the language and once done you are prompted to press space to start.
This then shows your plane flying around to music, and getting into the odd skirmish.
I can find no way to take over control of the plane. I do get a working hexagonal mouse cursor but that doesn't do anything.
Any suggestions on how to get it working much appreciated.
edit from developer: on Mac, simply move the game to Applications/ before starting it.