DRAGONBALL Z LOST MOVIE: PLAN TO DESTROY THE SAIYA-JIN

Dr. Raichii is the only Tsufurujin (the race eradicated by the Saiyajin many years ago) thought to have survived. He now is going to take revenge on the only surviving Saiyajin still alive, Goku and Vegeta. He uses machines that emit destron, a gas that will destroy all life on Earth.
While gathering firewood, Goku and Gohan notice that the trees and forest area around them are dying. Mr. Popo floats down to them and explains that a gas called Destron is destroying all life on Earth (including human), and will eradicate everything within 72 hours. They join up with Vegeta, Piccolo, and Trunks, then set out to destroy the Destron-emitting machines. There are four machines and protected by Tsufurujins monsters. Goku and other success to destroy its. Just when they believe all the machines have been destroyed, another is found. This one has a protective shield that even Goku's ki attacks can't penetrate. Suddenly, Frieza, Cooler, Turles & Lord Slug appear. But, they are not real. They are ghost warrior created by machine Hatchyack. Hence, that ghost warriors can be destroyed easily. But, they still must to save the earth from destron gas. To save Earth, Goku, Gohan, Trunks, Vegeta, and Piccolo go to the Dark Planet to face Dr. Raichii.
Dr. Raichii can be defeated easily because he is only ghost warrior too. But, machine Hachyack absorb hate energy Dr.Raichii and then transformed into an android form. Now, Hatchyack is ready to fight with Goku and the other. Evidently, Hatchyack as strong as Brolly. Finally, Hatchyack can be defeated with combined Khi blast attack of Goku, Gohan, Vegeta & Trunks.