This game features several returning actors from The Incredible Hulk (1996). Neal McDonough reprises his role as Dr. Bruce Banner, Michael Donovan reprises his role as Grey Hulk/Mr. Joe Fixit, and while Richard Moll doesn't reprise his role as the Abomination, he does have a role in the game as the voice of Devil Hulk.
Devil Hulk can be unlocked if you play story mode with abomination 6 times, Joe fixit 6 times, and savage banner 6 times. You then have to complete all the challanges and he appears in the buy menu for 2000000.
The original title for the game was "The Incredible Hulk: Critical Mass".
Character designs were created by Bryan Hitch, the artist behind Marvel's "The Ultimates". Hitch was brought to provide a lot of the concept art for the game to ensure it'd be comic book accurate. The developers went with Hitch's Ultimate Marvel series as their goal for reflecting the comic book in the game.
While running around either the desert or the city, an eatery called "Joe's Fix-it" is seen. Joe Fixit is the intelligent alias of the Gray Hulk who works as a mob enforcer.