Very fun and addictive, but it's complicated.
This game is overly frustrating and it'll have you running around in circles wondering what to do. Some of the "humor" it attempts to create is well, not funny. The AI team member you have is basically the most retarded thing ever. All they do is stand there when there's giant mobs of enemies. And it would've been nice if the developers would've at least let your AI damage enemies. Enemies only die if YOU are the one that killed them. Although I can see why they did this, it really makes you angry when you're trying to collect studs and you have tons of guys on the screen all shooting at you and re-spawning. Also, half the time your AI team member will be injuring you(You shoot at the enemy and then your team member deflects the shot back at you). And some of the puzzles are WAY too hard. I mean seriously, I thought this game was for kids?
Now for the good:
There's much to love about this game. It's VERY and I repeat VERY addictive. Even through all the dying and losing studs, you'll still be coming back for more. There's tons of hours to be spent in this game. There's 6 "chapters" for each episode(IV, V, VI) which adds up to tons of gameplay. And through each chapter you'll need to complete free-play and story mode. Although there's a lot to unlock, some of the things you work really hard to unlock, aren't really worth all the hard work. For instance lego city, I mean they could at least let you keep the 1mil studs after you collect them. Also, there's the awesome "Use Old Save" which lets you load all of the characters you unlocked on the first game onto this game(if you have save data on the same memory card). Great extras help out a lot in this game, like the 10x multiplier and the invincibility brick.
All in all, this game is a must have. But be warned, you will be very agitated through some parts. If you're planning on renting this game, be prepared to spend most of your rent time actually playing it because this game sums up around 20-50 hours depending on how much you really want to unlock.
I love this game! :)