This change is quantified as doubling the user's power level for the base Kaio-ken technique.

With training, the length of activation can be increased, as shown during Goku's extended use of the technique against Frieza eventually during the fight with Hit, Goku manages to hold a casual conversation with the technique active, and uses it continuously during their next engagement. The technique can also generate large amounts of heat from the user's body whilst being activated, creating steam rising from their body.Īs a result of the Kaio-ken, the user's base power level, strength, speed, and even sensory awareness greatly increase for an instant. There is no change to the user's physique, but the enormous stress of the technique can result in increased blood pressure, popping out veins and swelling the user's muscle mass. Unlike other transformations (like the Super Saiyan or Golden Frieza), the Kaio-ken must remain with its aura active all the time.

The power of the aura also bristles the user's hair and clothes if they have any.

When activating the Kaio-ken, the user gains a red and fiery aura, and in turn, their whole body and clothes acquire a reddish tint.

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