How do i experience toy story midway mania in california?

The provided sources confirm that Toy Story is a Disney and Pixar franchise consisting of several animated feature films and related media. No evidence was found regarding a specific attraction, event, or experience called 'Toy Story Midway Mania' in California. Therefore, I cannot offer instructions or details on how to experience such an attraction. If you are looking for Toy Story-related activities in California, you might consider visiting Disney parks or searching for official attractions that feature the franchise, but this is not derived from the current verified evidence.