There were more Gatchaman-based games than just Tatsunoko vs. Capcom. Check out this article (WARNING: Scrolling to the bottom of the page might be Not Safe For Work) on 411mania.com, which describes and provides videos of gameplay from Tatsunoko Fight!, the Battle of the Planets game for the Commodore 64, Gatchaman, The Shooting and a preview of the Gatchaman pachisuro game.
There are at least two games the article left out. One was a Korean game and the other was Gatchaman Access, which can loosely be called a game—it was mostly a Flash presentation of the OAV character designs that had puzzles, a trivia quiz, and lots of Easter eggs featuring design illustrations.
EDIT: I completely forgot about the two Gatchaman pachinko machine games, the online games that were part of the 2000 NTT Gatchaman campaign, and the mid-90s PC9800 computer game. (Thanks, Tatsunokofan!)