Great idea for a post, Wily. I can't get enough reviews about import games, so hopefully, this thread will become an invaluable resource for those looking to get more involved with the import scene (like me).

I've imported two games recently, Iga Ninden Gaiou and Download II, both for the PC Engine Duo/Turbo Duo. I'll give a brief description of each (I've only played them briefly) and my first impressions of each one.

Ida Ninden Gaiou
Pretty interesting game thus far. Started off with a very cool cinematic cutscene (this seems to be standard for a lot of PC Engine Duo games!) which was entirely in Japanese. Didn't have a clue as to what they were saying obviously, but it was nice to watch. The game itself is your standard side-scrolling action game so far with decent graphics and music. The gameplay is straightforward and the game is challenging so far. While it can't compare to Dracula X (then again, what game can?) it's still solid thus far.

Gameplay: 7
Graphics: 7 in game, 9 cutscenes
Sound: 7
English Friendly: 8 (the game is entirely in Japanese, but it's an action game, so the story might not be as integral as an RPG)
Overall: 7.6

Download II
Wow, this game is amazing. That's the first thing that ran in my head when the opening cinematics played out on screen. Very nicely animated. Then the game itself kicked in. Precise controls, good challenge, and some very nice, detailed graphics. And the music ... wow. Very catchy and thrashy during the first boss fight, which was so cool. I usually have a tougher time getting into shooters, since I tend to suck badly at them, but this one kept me coming back. An excellent game overall. This is a game shooter fans shouldn't be without, especially given its affordable price tag.

Gameplay: 9
Graphics: 9 in game, 9 cutscenes
Sound: 9.5
English Friendly: 8 (the game is obviously in Japanese, and the story does seem neat ... but the shining gameplay overshadows this a bit)
Overall: 8.9

Both of these games were purchased in the $20-30 range, which are very affordable for PC Engine Duo games. I'd recommend both thus far, especially for the price.