"They 've released a beta-version" was my thought after finishing some of the game modes. Sure, there's nice graphics and good music, there're exclusive challenges, but this is the core. Where's the rest? Where's the plot, the introduction, any reward for finishing the game? There isn't a single cinematic in this game, and the only thing you get for finishing it is one phrase: "you have defeated the [insert the name of enemy faction here]". Oh boy, that's so cool, isn't it?
There is no reason to play Battlefront 2 on PSP, at least no longer than for one or two hours. You can finish the PSP-exclusive challenges in 10 minutes each, as every single mode is easy and short. And when you finish it, you are brought back to the main screen, you can't save your score on each stage to come back later and try to beat it. And the very last and most frustrating thing - during a campaign, you will be forced to fight some space battles, which are totally boring and so easy that it's highly possible you won't see any enemy fighter in those 10 minutes you need to finish the stage.
The game - I mean the rules, the visuals, the controls - is OK, and being a Jedi is cool, but come on, you can't release just the core! It's like making a movie with great actors, score, fx and photography, but without any plot. Just showing pictures. It gets boring very quickly. If they released some patch, adding cinematics and plot, it'd be a great title for PSP. But as for now, it's shallow and empty.