Avengers: Infinity War, now playing in theaters, is the 19th movie in the Marvel Cinematic Universe , tying together nine film franchises: Iron Man, Hulk, Captain America, Thor, Doctor Strange, Ant-Man, Guardians of the Galaxy, Spider-Man, and Black Panther. These characters have decades of comic book  history dating back to 1962, with some of them seeing their first live-action interpretations only now.
But many of them have appeared in other media as well — and that includes Apple II games. Kat Bailey at USGamer has compiled the video game history of every major hero in Avengers: Infinity War . The Apple II gets a special shout-out for being the first video game to ever feature The Incredible Hulk:
Hulk is known as the unstoppable force of destruction, but his first video game appearance was in… an adventure game? Yep, Hulk's video game debut was in 1984's Questprobe, a trilogy of command-based adventure games for the Apple II and Commodore 64 [also] featuring Spider-Man, The Human Torch, and The Thing. It had fantastic art for its time, but the graphical splendor resulted in severely limited commands, hurting overall gameplay.
MobyGames  offers this plot summary:
1st in the Questprobe Marvel Comics series. Play Bruce Banner and the Incredible Hulk through this interactive fiction game with graphics. You awake as Banner, tied by ropes to your chair in a bunker in the desert; once you free yourself, collect all the gems to escape this hellhole.
These games were designed by Scott Adams , author of many classic Apple II text adventures. However, The Hulk was the first in the Questprobe series, with the sequels using a much-improved game engine; as a result, Hulk may not have been Adams' finest hour.
Although Avengers is tearing up the box office, the Hulk didn't similarly smash his way to success in his Apple II outing: Questprobe, originally planned to be a series of a dozen games, was cancelled after the third title when its developer went bankrupt. Such was the case for many text-adventure publishers of that era, as more processing power became available and gamers migrated to more visual genres of entertainment.
A greater loss than Hulk's defeat at retail is his disappearance from history: my initial search in the Internet Archive  revealed many playable copies of Questprobe, but only for the Spectrum ZX and Atari 800 computers; the Apple II version was surprisingly absent.
Surely that floppy disk isn't rarer than an Infinity Stone. If the Avengers can come together to save the day, we can do our part to preserve the Hulk ! Fortunately, all it took was a tweet aimed at the right persons:
— Ken Gagne (@kgagne) May 2, 2018 
— 4am (@a2_4am) May 3, 2018 
… and the game is now available .
Hulk was NOT slain by Thanos, for the good of the Universe. Phew!