Nintendo has 5000 copies of Metroid (NES, Virtual Console) to give away.
To be eligible, you must be one of 5000 people to register a copy of Metroid Prime Trilogy on the European Club Nintendo website. You must also have previously registered Metroid Prime, Metroid Prime 2: Echoes or Metroid Prime 3: Corruption there.
Those are the three games that make up Metroid Prime Trilogy, which arrives on one Wii disc on 4th September. The two GameCube entries now support Wii remote controls and wide-screen displays, plus Nintendo has added some in-game rewards.