Though during his fusion with Kami, it would appears as if Piccolo's power only about doubled, compared to the much larger boost the fusion with Nail gave him. On both occasions, Piccolo gained enough power to defeat the current villain before they powered up. Later on, however, he went back to referring to himself as Piccolo. During the second fusion with Kami, Piccolo briefly stated he's not Kami nor Piccolo but a Namekian who has long since forgotten his name. However, Piccolo does notice some personality changes before adjusting to them and returning to his old self. Kami agreed to defeat a new threat, they had to reunite. Nail simply wanted to make sure Frieza is beaten.

Both times, Nail and Kami agreed they would not combine their individuality with Piccolo's due to his pride and for their own individual reasons. Both times, Piccolo fused with Nail, the last Warrior-Type Namekian, and then with Kami. When this happens, the Namekians can choose who's form the new being will be based on. This technique is used twice in the series. It is also possible to merge with more than two Namekians. After the fusion, only the body of the host remains, and the non-host ceases to exist as a body. The agreed host places his hand over the chest of the other one and through unknown means, they merge with a blinding flash. Both participants must willingly consent to fuse in this manner and usually, the pair agrees to the stronger of the two to serve their body as the host. A special technique unique to the Namekians, it is more of an assimilation than a fusion, as one Namekian absorbs the energy, strength, memories, and intelligence or thought pattern of another.

'Assimilation') is the first biological fusion that appears in the series (mechanical merging having already appeared with the Pilaf Machines' combination ability).

Dragon ball fusions