Too grim for kids and too dumb for grown-ups, this cut-rate CG space opera raises more questions than it answers. Where did the dueling species of frog-monkey warriors come from? Why does the teen hero (Freddie Prinze Jr.) have Jedi-like powers? And why is evil Sedessa (Anne Bancroft) bent on world conquest? After 90 minutes of static action and videogame-caliber graphics, most viewers will be left pondering the biggest puzzle of all: Why was Delgo even made? D?