he takes the fish to his lab and reprograms it to help him but still leaves its memory intact to help him get to the bad guys lab
he tracks the creator of the fish to a five star hotel in MO. he is on the 5th level so the good guy spies on him through the window and he sees him get into a snall space capsule
The good guy follows the bad to the moon where the bad guy uses his porta potty. When he comes out there is a confrontation and the good guy gets the remote and destroys it, powering down all the pirannahs.