The ZX Spectrum port was legendary. Couldn't believe I was playing R-Type in my home back when the arcade machines were so far ahead of what home computers could pull off.
Our local pub had a little arcade section for the kids with R-Type as one of the machines and I remember pumping in plenty of 20p coins into it.
Another fond memory is the excitement of getting R-Types on PSX back in the day.
I guess I need to try out this Amstrad port to see how good it is.....