They seem to have succeeded in doing this. To create this leaner, more flexible suit, the suit makers at Toho used less urethane foam and rubber, instead adding a special material resulting in a lighter suit. The arms and legs are slimmer than usual, allowing the actor’s arms, fingers, and legs to fit perfectly into the suit. Toho managed to reduce the weight of the suit by almost 44 pounds, allowing the actor inside much more movement and flexibility, and making this one of the most realistic-looking suits ever.
Godzilla: Final Wars (2004)  – Japanese Trailer
Godzilla’s thighs are also one size smaller and the tail from the KiryuGoji suit used in the previous two films was reused.
This was originally 45 minutes long and contained a lot of behind the scenes footage, crew interviews, and studio tours. I cut out most of the content that did not pertain to the monster costumes to keep it as short as possible.
Here is the official making of Final Wars video but again, I edited it done a lot to just show the monster suits as much as possible.
The screencaps were captured from the Sony Blu-ray and the behind the scenes images were scanned from the Japanese book: Godzilla Graphic Collection by Hobby Japan. Some of the images may have been modified to see the textures more easily.
Have you already completed your own Godzilla costume and want to feature it here? Then by all means contact me and we’ll work together to add your costuming experience to this site.