In Dragon Ball Z's Namek/Frieza Saga, Goku first tries to defeat Frieza with his powerful Spirit Bomb attack. However, Frieza was on a different power scale, and Goku would hardly leave Namek alive after defeating Frieza after using one of his strongest attacks (although that Spirit Bomb only had energy from Namek). The Frieza Saga is one of the most beloved arcs in Dragon Ball.