Really more of a parody of super hero movies than an actual super hero movie, it's sort of a campy, spoofy, origin story that is occasionally entertaining and fun with a few laughs, but nothing really special. It does have a very nice visual style to it and some decent action though.
At times it goes a direction that is a totally different take on the genre and has a bit of inventivness to it, but overall is sort of uneven. I do really like Kato as he delivers some nice ass-kickings with dry wit and worked very well as a sidekick to the overbearing Rogen character. I would probably see a sequel to this if they made one (they won't) just for Kato. Seth Rogen is OK I guess, but most of his one-liners are a bit flat and I only got a few laughs from his obnoxious character. Cameron Diaz is here but she doesn't do a whole lot frankly.
I also think it runs a bit too long and could have done with about 15 or 20 minutes chopped off.
Overall it's a decent, ocassionally funny action/bromance that has some nice flashy lights, whistles and bells to keep your interest but is probably pretty forgetable soon after.
6/10