I’ve just seen this message from Gilby on World of Spectrum regarding the recently discovered discs:
To date, the Spectrum Mega Twins disc has been successfully dumped, plus two Amstrad discs with Mega Twins on it… There are other proto discs that have been recovered, but progress is very very slow. Mega Twins is in a fairly playable form, although not complete. There are some graphics glitches with the scrolling and some placeholder graphics are in place rather than finished artwork… Also it appears some collision detection is not in place.. I´d say the game is about 95% complete give or take.
This seems to tally with the CPC screenshots on from Amstrad Computer User featured. 95% sounds promising, lets hope we get to have a go soon.