OK, first the obligatory 'Cool Thread' comment. Cool Thread!
I love Turrican. I'm fortunate to have 1,2, and 3 on my miggies thanks to WHDLoad. But some time ago, when I got my current A1200T, after some upgrade... I couldn't get Turrican (1) to run. Not even with WHDLoad. So I started looking for another version to get my 'fix'. I spent a bit too much money on the Turbo Grafx 16 version, and was pleasantly suprised... Except, GRRRR, that level where you're flying that scrolls up, is missing from the TG16 version.
Overall, though, it's a very good conversion. Graphics are pretty good, although the colors are muted in comparison to the Amiga.