First Contact sets up the Ultraman Cosmos series by showing us how Mushashi, as a young boy, becomes Ultraman. The effects are
(apart from the opening fight in space between CGI characters), including a startling transparent Ultraman. Once again, it's the monster Baltan who's the main foe - Baltan was the very first adversary for Ultraman in the first episode of the 1966 series.
The monster-friendly theme of the TV series is established in the film in a scene where the EYES team try to fend off a giant monster by punching it gently on the nose (with giant boxing gloves that have inflated out of their Thunder vehicles)! Similarly silly is an attempt to sing Baltan a lullaby (out of huge speakers that have sprouted from their planes) and send him to sleep. Also, there's a lot of kids charging about in this one, a stereotyped grandad/inventor and a flying toy robot.