Skip the Wii version, speaking from exp. I was so stoked for the new game, probably too stoked.
As for whay game I've forgotten? Well, I don't know what I've forgotten. A game I thought about the other day was a side-scrolling platformer for the Commodore 64 named Floyd the Droid. It had a nice bluesy sound track and crisp graphics. Hard as hell. Sewer cleaning/ exploring robot.
Yeah I considered Alien Syndrome for all of about 10 seconds when I once saw it on sale for $15.00. Then common sense kicked in and I quickly ignored it. I would have paid $15 for the original, but not the new one. Even without reading a review it puts off bad vibes. From the screenshots to the cover art it all looks bad and cheaply made.
A lot of the games I tend to have forgotten about were old arcade games. As a kid I never had a nearby arcade to go to. Now and then I'd go to a roller skating ring that had a few games or to a pizza place that had a few. At any rate I was usually in a position to play an arcade game once every 3 or 4 months. It was usually kind of fleeting and I'd rarely get to play any given game more than two or three times unless it was a real high profile game that the owners kept around for several years. It wasn't until I was in college during the mid 90's that I routinely had an arcade to go to, and that was pretty much at the tail end of existance of arcades.
So now whenever I find a collection of arcade games and I'll browse through screenshots and inevitably I'll see something and go "oh yeah! I remember this from 1984." Good feeling though. Almost like an endorphine rush.
I was looking down the list of games on the Sonic's Ultimate Genesis Collection and noticed Alien Syndrome. I couldn't remember this so I looked it up on Wikipedia. DUUUHHHH!! I used to live for this game back in the arcade. For a brief few weeks while visiting a cousin we'd go to an arcade near his house that had this game. No clue how many quarters were put it, but I likely could have bought a console verion of it by the end of my vacation. Until now though I'd completely and utterly forgotten my obsession with this game, even though I'd see the Wii version and the game mentioned several times. One screenshot brought back a flood of memories. Good times I tell you.