When I imported a Playstation 1 about 8 months before the US release, the Japanese games were $100-150 each. I got one called Cosmic Race....Hot damn, I can't even BEGIN to convey how horrible a game this was. Its SO bad I have looked for a copy to keep so I could say I own the worst home system game ever made.
Picture this. A hover car racing game, in space, with a holographic "road" one pixel thick that you pass right through...and you are supposed to stay on the road, even though you have 360 degrees of movement. it was IMPOSSIBLE to play. If you got off to the side of the road, then you couldn't SEE the road because it was so thin. Also, did I forget to say that it was a RACING game and that your opponents magically stayed glued to the road? So they would race each other while you just floated in space, spinning around and trying to FIND the road. Damn I get so mad THINKING about that game.
And after all of that, if I had to say a game that came out over here that I hated, it would be Jet Force Gemini for the N64. Nintendo built up the hype of THAT pile of crap for like a YEAR before it came out, took $70 of my money and pissed me off.