As far as we know, Nintendo isn’t doing anything special for Metroid’s anniversary. Zelda, on the other hand, will see symphony concerts around the world, two soundtracks, a special gold Wiimote, a Flipnote Studio competition, and the release of five games – Skyward Sword, Ocarina of Time 3D, Link’s Awakening DX on the eShop, Four Swords DSiWare, and the original...