Doragon bôru Z 5: Tobikkiri no saikyô tai saikyô

The name of this movie is Doragon bôru Z 5: Tobikkiri no saikyô tai saikyô released in 1991-07-20 and it's main theme is After defeating Frieza, Goku returns to Earth and goes on a camping trip with Gohan and Krillin. Everything is normal until Cooler - Frieza's brother - sends three henchmen after Goku. A long fight ensues between our heroes and Cooler, in which he transforms into the fourth stage of his evolution and has the edge in the fight... until Goku transforms into a Super Saiyan..