Big Man Japan
The special effects in this movie aren't great, but neither were the rubber suits they are replacing. The movie isn't quite logical, but it's fun. The various monsters that Masaru has to battle are hilarious and the "data sheets" that appear before the battles are great as well. Masaru is greeted by the public with indifference at best, and he seems to exist outside of society. The ending ups the nonsense level to 11 and leaves me wondering if we are actually supposed to understand what was going on.
This movie isn't for everyone, but those who enjoyed Toho-style monster movies should definitely be entertained. Even if those who are are annoyed by the ending should agree that the time leading up to it is full of gems. This isn't a movie that needs to be hunted down, but when it's worth a check if it's available.