Booty (https://spectrumcomputing.co.uk/entry/6 ... trum/Booty) has the following comment on the game entry:
I was *not* able to confirm this using emulators (InkSpectrum, EightyOne, ZXSpin), might be because the emulation is not emulating the interface but the feature."Loading the game with a Currah Microspeech unit attached activates a hidden mini-game, where the player must dive to catch 20 goldfish without touching another creature or running out of air."
Anyway, I decided to peek around, and using Richard Jordan's SGE tool I've found some graphics that might be related to that minigame:
I'm also not sure how this is supposed to work, if it is a new option on the menu or the game starts right away.
I don't have my Speccy around, anyone with a Currah and a 48k Spectrum can test and confirm this? A good photo can also be welcome, so we can document it.