Y'know, other stuff, Sinclair related.
In Questprobe One: The Hulk, in the first screen, Bruce Banner is tied hand and foot.
'What shall I do?'
And the solution (I think it was an alternative one too) was 'bite lip' so that Banner turns into Hulk and can break the ropes.
Many people (like me) tried hundreds of solutions with no success. I couldn't progress in this game till the internet years. 'So it was just bite lip!!!'
It was a frustrating adventure!
The Americana re-release displayed this solution at the cassette inlay.