Fusion

Here's how fusion works. The pl, speed, and stamina are added togther for the duration of the fuse. The character made from the fusion can only transform to the highest level of the lowest person. Ex. When goku and vegeta first fused, goku was SSJ3 but vegeta was still only SSJ2. SO, Vegeto(or gogeta, applies to both) could only reach SSJ2 until GT when vegeta finally got to SSJ4. These are the pairs of people who have partnered up for fusion