"A Hulk of Many Colors",
"She-Hulk, Weapon of A.R.M.O.R." continued from Savage She-Hulk (Vol 2) #4.
Reprints Hulk: Gray #1.
*WHO IS THE RED HULK?! THE AMAZING SPIDER-MAN IS GOING TO TRY AND FIND OUT! GREEN HULK! RED HULK! SPIDEY! SECRETS REVEALED! A STORY SO BIG IT CAN BARELY BE CONTAINED IN THE INCREDIBLE 600TH ISSUE OF HULK! ALL THIS AND A STARTLING SURPRISE ENDING TO TOP ALL THE OTHER SHOCKING SURPRISES THIS HULK BOOK IS KNOWN FOR! The chart-topping team of Jeph Loeb and Ed McGuinness bring you a 600th-issue celebration guest starring your friendly Neighborhood Web-Head as the original Incredible series returns! Plus, back-up story by Fred Van Lente featuring the Savage She-Hulk! And representing the first issue of the Loeb/Sale HULK: GRAY series. *Source: marvel.com