The Fusion Dance is a techniques that is introduced by Goku during the Fusion saga, having learned the technique from Meatomarns in other world. His son, Goten, fuses with Trunks in order to create Gotenks. The purpose of the Fusion Dance is to temporarily merge two bodies into a single, superior entity.
To correctly perform the Fusion Dance, the fusees must create a perfectly symmetrical image of one another. The Fusion Dance is a short series of poses that are performed by two characters of equal power levels and roughly equal size. In the series, the result of a correctly performed Fusion Dance is a superior being whose power is multiplied severalfold over that of the individual fusees. If one character performs the dance wrong, then it will result in an obese or a skinny character who is much weaker than either fusee individually. Vegeta using the Fusion DanceIf the timing of the poses is off, it results in a sickly-looking fusion who is also much weaker than each fusee individually. Regardless, the fused character possess mixed physical traits of their original counterparts. If they synchronize their dance correctly, it results with a very powerful being. Additionally, all end products of the Fusion Dance seem to acquire the same attire: white pants, a sash, and a vest with yellow or orange padding around the shoulders and neck.