After many months of playing I have finally finished all three of the games included in this excellent limited edition box-set. The game(s) come in a nice metal tin with a clear plastic outer sleeve. Normally, I don't care too much about this sort of thing, but it was a nice surprise when I first opened the package to find that they put a little thought into the design. Apparently, this is out-of-print and now fetches prices near $100 on Amazon (when I got it, it was $25, new).
The set contains three games: Metroid Prime, Metroid Prime: Echoes and Metroid Prime: Corruption. The the first two are GameCube games that have been upgraded with Wiimote controls and widescreen graphics. The Prime games are first-person shooters with more emphasis on puzzle solving and exploration rather than the actual shooting part. The FPS mechanics work admirably on the Wii but are just wonky enough that I'm glad that they are not the focus here.
Of the three, I liked Corruption the best. This is probably because there was a plot in which you actively participated. This is as opposed to the optional (and dare I say boring) text pickups you needed to read in the first two games in order to follow the story. Granted, this is not even close to the narrative hooks of Half-Life 2 or most other PC FPS games, but the story isn't the end-all in Metroid. What keeps you coming back is the beautifully designed worlds that you explore and the satisfying boss battles scattered throughout the game.