In 1986 there was also a surfing game that utilised a similar method of including a little plastic surfboard that rested on rubber key'ed spectrums, and dependi

In 1986 there was also a surfing game that utilised a similar method of including a little plastic surfboard that rested on rubber key'ed spectrums, and depending on which way you tilted it, it would press certain key/key-combos down and claimed to thus give you a more 'realistic' control method. https://spectrumcomputing.co.uk/zxsr.php?id=5078 https://spectrumcomputing.co.uk/zxsr.php?id=5078 I believe this one had little nubs under the board, and thus worked 'somewhat' on the Spectrum+ too. Notably the review calls out that at least one of the reviewers couldn't get it to work quite right on the + keyboard.