[watmough]

Clunkier. Yep. Doesn't look near as good as the 'real' Spectrum R-Type.

https://www.youtube.com/watch?v=-6lvAXSGBpI

I think it's the blocky movement that kinda kills it for me.

[Narishma]

Perhaps I'm missing something but the video you linked to seems to have blocky movement as well.