Ha, I just watched this a couple of days ago, and it is a great example of Japanese sc-fi. The set design is quite good, and while it took me awhile to get a handle on who all the characters were, the actors do a fine job. Plot wise it takes some time to get to the actual mushroom people, but by then you hardly notice as the plight of the passengers to survive is interesting enough. That rifle did have a lot of ammo though