Game dosn't support joystick :-(.
Sorry Solaris, It was mostly programmed on my Chromebook and I didn't have a practical way to test a joystick feature.
I hope it doesn't detract from your enjoyment.
I have included a re-define keys option so that to help the situation, so you can choose your preferred keys.
Redefine keys dos't support numerical keys 1-0. Sinclair joystick use key 6,7,8,9,0.
Watch this space. I feel an update in the air.
Update with the ability to define number keys is available...enjoy
Thank you very much :-)