I didn't know what "gooner" means, so I tried to look it up. I found multiple uses of this term:
- Being obsessively online, consuming content that sexually excites you
- Masturbating for hours
- Being a fan of soccer/football club Arsenal
And now I still don't know what is being said in the screenshot.
Although I never saw the packaging. All games I had for the C64 I got at school.