Revealing mistake: When the monster uses its claw to swat Hayata away, under the superimposed claw you can see the abrupt disappearance of Hayata's shadow from one frame to the next. (00:19:30)
Revealing mistake: During his first confrontation with the alien, Hayata's pistol shoots powerful rays that don't cause a single speck of damage to the walls when the monster dodges them. They are just superimposed. (00:09:40)
Revealing mistake: When the monster is revealed behind a column as the troops enter the building and it splits in two mirror images, they did not stop the clock in the background, which reveals whenever they stopped filming to change things in frame.
Revealing mistake: The victims of the stasis ray in the episode try to hold still as much as possible...with varying° of success.
