Limited Regeneration - This takes a specific number of rounds based on the limb attempted to regenerate. This works at the cost of energy points, using up the same fuel so to speak that an energy attack or a special technique would. This also does not restore hp.
Antennae - Used for telepathy between other nameks, this mind communication can stretch across the galaxy, but only works with Nameks. In fact, besides it's highly useful communicative properties, the antennae also provide namek fighters engaged in combat a circumstance bonus when working together against a non namek opponent. This is due to the instantaneous relay of information between allies and is translated as a +1 to hit, armor class, and +2 reflex saves.
Fusion - A unique trait among nameks is the ability to become one. Of course, this can only be obtained through intensive training of the ancient arts and does in fact require a feat to access. Both parties must be willing, and in posession of the Namekian Fusion Feat.
Namekian racial mods - +2 Con, +2 ki, -2 int
