The issues featuring TRON variants are:
Amazing Spider-Man #651 featuring Spider-Man
Avengers #7 featuring Spider-Woman
Avengers Academy #7 featuring Quicksilver
Captain America #612 featuring Captain America
Incredible Hulks #618 featuring Ghost Rider
Invincible Iron Man #33 featuring Iron Man
New Avengers #7 featuring Ms. Marvel
Secret Avengers #7 featuring Moon Knight
Thor #617 featuring Thor
Wolverine #4 featuring Wolverine
This unprecedented onetime event brings together the world's greatest super heroes with the hotly-anticipated blockbusters of the year, TRON: LEGACY. No pop culture fan can afford to miss Marvel's TRON variant covers! And get ready, as TRON: LEGACY invades theaters on December 17, 2010.