This movie was a lot of fun. The first one was ok, but this one was an improvement in every way. I loved that the writers figured out that the Bat Family is basically a science ninja team and ran with the idea. I loved all the 70's throwback stuff. I really loved how much the writers seemed to know the characters. All of the characters kept their core aspects and there was some pretty cool and creative uses of their powers, which I always like to see.
Definitely not a flick to take too seriously, but its a good time for sure.
The only thing I didn't get was the different art styles. In Batman Ninja the art style changed for dramatic effect but in this one it seems to just switch back and forth kinda randomly. Maybe its the switch between 2D and 3D animation? Not sure, but it was distracting.