I have all of them except Four Swords Adventures. Beaten all of them except that and Adventure of Link and the original version of Four Swords (had nobody to play, and primarily bought it for ALttP anyway). I did complete the DSi-ware Anniversary Edition of Four Swords though. I find Adventure of Link to be near impossible, but might give it a go again sometime in the future, can't have that one game beat me! I also have most of the ports and remakes made over the years. So, including every possible version:
The Legend of Zelda (NES)
A Link to the Past (SNES)
Link's Awakening (GB)
Ocarina of Time (N64)
Link's Awakening DX (GB)
Majora's Mask (N64)
Oracle of Seasons (GB)
Oracle of Ages (GB)
The Wind Waker (GC)
Ocarina of Time (GC)
Ocarina of Time Master Quest (GC)
A Link to the Past (GBA)
Minish Cap (GBA)
Twilight Princess (GC)
Twilight Princess (Wii)
Phantom Hourglass (DS)
Spirit Tracks (DS)
Four Swords Anniversary Edition (3DS)
Skyward Sword (Wii)
Ocarina of Time 3D & Master Quest (3DS)
So that's 14/16 games, and 20 total including all ports and remakes and therefore voted "Over 9000" 
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