Questprobe featuring The Hulk

Questprobe featuring The Hulk is a graphic adventure game in which the player controls the Hulk and his human alter ego Bruce Banner. The player can move between locations within the game's environment by entering one of four directions (north, south, east, and west), and can examine objects in search for clues to advance the narrative. The game features a 120-word vocabulary, and the parser can only register commands up to two words in length, generally in a verb/noun format (for example, "open box"). Commands consisting of a single letter may also by entered to expedite gameplay time (for example, "u" or "d" to move up or down).

Although lethal scenarios may be encountered, dying merely results in the player being deposited in a limbo-like room, where the player may enter "go down" to descend a flight of stairs and resume gameplay without penalty. The game's graphics can be toggled on or off. The player can save their progress by entering "save game" and assigning the current game to one of four code letters (A, B, C, or D), which can be entered to load the game at a later time.

Bruce Banner awakens to find himself bound to a chair in a mysterious chamber. He manages to transform into the Hulk and free himself, but gas fills the room and permeates his skin, reverting him back to Banner. He explores his surroundings, which consist of three dome-shaped buildings and a grassy field surrounding them; Banner is able to transform into the Hulk outside of the domes. He happens upon an astral projection of Doctor Strange, who advises remembering Nightmare and encourages him to "look for Scott's next Marvel Adventure at [his] favorite store" before vanishing.

In a cavern, the Hulk encounters Ultron, who has trapped Ant-Man in a cage. The Hulk gathers a swarm of army ants from the field, allowing Ant-Man to control them, incapacitate Ultron, and free himself. Throughout his exploration, the Hulk amasses a collection of gems. Upon retrieving all of them, the Hulk is approached by the Chief Examiner, who leaves him with the password "Aria".

In 1983, Marvel Comics vice president Joseph Calamari, wishing to introduce the brand to home computers, searched for a licensee for use of the company's characters in a home computer game. He personally approached Adventure International founder and CEO Scott Adams, recognizing him as a leader in the market. Adams had been an avid reader of Marvel since his childhood, and saw potential in the venture. The negotiations for their contract lasted six months, with the final version being signed on December 1, 1983.

Marvel granted Adventure International a ten-year license for exclusive use of their characters in adventure games. This was Marvel's first long-term license, as most licenses last only one or two years. It was also Adventure's first time using licensed characters, and Adams would reflect fondly in his collaboration with Marvel, considering them one of the friendliest firms he had worked with.

Reception of the original release of Questprobe featuring The Hulk was generally positive, with the visuals receiving particular acclaim. The White Wizard of Personal Computer Games regarded the graphics as excellent, but was also thankful for the option to toggle them off to decrease loading times. Steve Gould of Page 6, deeming the game "the best Graphic Adventure of any kind that I have seen", commended the size and detail of the visuals as well as the elimination of flickering in comparison to past graphic adventure titles. Derek Brewster of Crash praised the graphics for their rich detail (singling out the transformations between Banner and the Hulk) and fast loading times.

Noel Williams of Micro Adventurer acknowledged the graphics as attractive, but considered them to fall short of those of other software companies. He appreciated the illustrations' stylistic accuracy to the comics as well as the close-up images of the game's collectible items. However, he was annoyed that the transformation from the Hulk to Banner slowed the gameplay's pacing. John Jermaine, writing for Run, was pleased by the accuracy of the visuals to the comics and admired the artistry of the backgrounds.