If you choose to play the emulated versions, the game features an original story by comic writer Matt Fraction that serves as a sequel to the film's events.
This is a gray area. Iron Man 2 is considered "abandonware" by many communities—meaning the publisher (Sega/Disney Interactive) no longer sells it commercially. However, it is technically copyrighted. Iron Man 2 Pc Game Download Highly Compressed
The risks (malware, broken game) far outweigh the reward — and the game itself wasn’t great to begin with. If you really want to play it, buy a used physical copy or emulate the console version safely. If you choose to play the emulated versions,
I understand you're looking for information on a highly compressed version of the Iron Man 2 PC game. However, I need to provide an important caution before proceeding. However, it is technically copyrighted