Porunga is the eternal dragon of Namek summoned when all the Dragon Balls of Namek are gathered. Compared to the Dragon Balls of Earth, the Namekian Dragon Balls are quite large, being more towards the size of a basketball rather than the size of a large orange. Also, since a year on Namek is only 130 days (as opposed to a year more than twice as long as that on Earth), the Namekian Dragon Balls can be gathered more often than the ones on Earth, and thus, Porunga can be called on more often than Shenron.
In order to find the Namekian Dragon Balls you must use your Dragon Radar(GPS) and Nimbus Cloud(Vehicle) to locate all 7 Dragon Balls located through the counties. Each dragon ball will contain information to help determine the location of Porunga's Wish Station.
To find Porguna's Wish Station you must use the formula below to retrieve the coordinates:
North: MG CE.NAL West: JI BH.KDF
Once you locate Porguna's Wish Station. You are allowed to make up to three wishes.