Must gather all 7 Dragonballs
Once you have all the dragonballs, chant "Come out, Shenlong, and grant my wish!"
Only one wish per summoning.
After the wish, the DragonBalls turn to stone and scatter all over the Earth
The DragonBalls don't return from stone untill one year has passed
Shenlong can't grant a wish more powerful than the DragonBalls' creator
You can wish back a group of people of the same criterea
Cannot wish someone back that died of natural causes
The same person can't be revived more than once
Earth's New Dragon Balls
Must gather all 7 Dragonballs
Must chant "Come out, Shenlong, and grant my wish!"
You get two wishes per summoning
After the wishes, the DragonBalls scatter all over the Earth
The DragonBalls don't return from stone untill one year has passed
If only one wish is made, they return from stone in 4 months
Shenlong can't grant a wish more powerful than the DragonBalls' creator
Can revive a group of people in a certain criterea
Can't revive someone that died of natural causes
The same person can't be revived more than once
Namek's Dragon Balls
Must gather all 7 Dragonballs
Chant required in Namekian language password is: Porunga
Wishes must be said in the Namekian language
3 wishes per summoning of Puronga
After wishing, the DragonBalls scatter over Namek
The DragonBalls don't return from stone untill 130 days have passed
Puronga can't grant any wishes more powerful than the DragonBalls' creator
You can revive anyone multiple times
Can't be revived if he/she died of natural causes
Can only wish back one person at a time