Scooby-Doo and the Alien Invaders four Scooby-Doo direct-to-video films to be animated overseas by Japanese animation studio Mook Animation. It was the last film to feature Mary Kay Bergman as the voice of Daphne before her death in November 1999 and the film was dedicated to her memory. The Mystery Machine is driving through a desert in Roswell, New Mexico. A sandstorm comes up and Shaggy Rogers makes a wrong turn onto government property. Seeing a UFO causes Shaggy to lose control of the vehicle and the gang find themselves on the outskirts of a small town. While Scooby-Doo and Shaggy stay with the van,
Scooby-Doo and the Cyber Chase is also the fourth and final Scooby-Doo direct-to-video film to be animated overseas by Japanese animation studio Mook Animation. This movie, along with "Aloha, Scooby-Doo!", was part of the first Scooby-Doo re-release on Blu-ray on April 5, 2011. This was also the first movie to feature Grey DeLisle as the voice of Daphne Blake after the death of Mary Kay Bergman in 1999. This was also the last film Scott Innes voiced Scooby-Doo and Shaggy, as well as the last film where B. J. Ward voiced Velma. A video game based on the film was released by THQ in 2001