Super Namek
Namek's have the ability to grow to enourmous sizes and increase their power vastly. Upon reaching a natural power level of 40,000,000, Nameks can trasnform into Super Namek Stage, increasing their power level by three times and their attack damage and hit points by 75%.
Namek Fusions
Nameks posses the ability to fuse with others of their Race. This can be done one of two ways. The first way is temporary. They can fuse together and form a combined being for a period of two ful turns at which point they break apart and are at half stats for two hours from exhaustion. The second method if permanment, where they combine their stats and become one being. One Namek acting as base and the other as an enhacement. Once a characters fuses for good, there is no changing your mind.
Sayain Fusions
Sayains can perform something called a fusion dance that will fuse them into a single being. This will add all their stats together as well as their moves for the duraction. This lasts for 3 full turns then they will break apart.