I just finished watching Gamera vs. Zigra, the final Gamera movie for MST3K.
This movie was a bit slow. Two children are kidnapped by a mysterious woman in a space ship. They escape, and the woman chases them because Zigra wants her to kill them. As far as I can tell, Zigra was the space ship, and then it shape-changed into a giant shark monster, except it can stand on its fins just like a real shark can’t. It whoops up on Gamera a few times, but Gamera makes a comeback and takes out Zigra, saving the children and the Earth. Plus, there’s a message at the end about protecting Earth’s oceans.
I rate this movie three empty seats, one for Joel, Tom Servo, and Crow T. Robot since they won’t ever get to see another Gamera movie.