Blutz Wave Generator

The Blutz Wave Generator is a tank-like apparatus that fires concentrated Blutz Waves, the same type of radiation emitted by a full moon that triggers the Great Ape transformation in Saiyans. Bulma originally constructed the device while under Baby's mental control during Dragon Ball GT, intending to strengthen Baby Vegeta by forcing a Golden Great Ape transformation without requiring Vegeta's tail.

The machine proved highly effective. It was first used to transform Baby Vegeta into a Golden Great Ape, dramatically increasing his power during the battle against Goku. Later, after Baby's defeat, Bulma repurposed the same generator for a very different cause. During the desperate fight against Omega Shenron, she used it on Vegeta to trigger his transformation into Super Saiyan 4, since Vegeta still lacked a tail at that point in the story.

The generator's final fate came during the same battle when Omega Shenron destroyed it with a Finger Beam after Bulma attempted to fire Blutz Waves at him to protect Trunks. The concept of artificial Blutz Wave generation also appeared earlier in anime filler material, where Attack Balls were shown to contain a device capable of projecting a holographic moon to trigger Great Ape transformations in their Saiyan occupants.