THE Gundam game, hands down one of Bandai's greatest.
This game is a close to gundam as you can get. All the mobile suits stay faithful the series. You will also find that this game requires a tad bit more skill depending on the unit chosen(i.e. controlling a mobile armors requiring more patience to master than regular mobile suits)

The description above left out one little detail that few people mention. This game has "raise a character" mode called Progress mode. In Progress mode you take control of your own character, and fight the wars along side the main characters, from 0080(amuro ray and the classic crew) to UC 0125(crossbone).

The extras are amazing. You get BGM, FMV of the battles(with updated animation), stats on pilots and suits(even the lowest level suits and characters). If you are a Gundam fan, Mecha fan or a fan of a well done game period you need to pick this up.

Totally awesome!
A totally awesome game so far. Just started today, but its fighting engine and choice of mecha/robots/mobile suits is just great. Love the cutscenes and voice acting too. It even has a tutorial so if it's the first time you've played, you can get started and learn the basics and get a good feel for the controls. Great Gundam PS2 game; recommend it to any Gundam fans.