Manborg feels you're watching the cut scenes from a video game more than you're watching a movie. It's fun, but it feels like there was so much work put into something which inevitably ends up as a lark. Maybe I'm just a party pooper. Or maybe I like when movies are funny because they are just weird or foreign, versus the forced humor that comes when you make a parody or a genre already rife with unintended humor.
That said, this is a real CGI achievement — just watch the extras to see how much of the world was created for the film. Is it a good movie? Well, it's more like an 11-minute Adult Swim show played out for an hour. There's some goofy humor and some slap happy action. That said — going back to my eleven-year-old self, then my answer would be, "Yes, this movie is awesome."