Is Dragon Ball Z: The Return of Cooler available ... Well, turns out that advanced tech can do wonders for a vengeful alien ...

Certain alien species in Dragon Ball have massive advantages over others ... Frieza's brother, Cooler, was even more powerful than the rest of his family at the time he debuted.

Super Saiyan 4 was first introduced in Dragon Ball GT when Goku opposed the alien villain known as Truffle. Unlike previous transformations, which relied on emotional outbursts or godly rituals ...