Every epic moment of dbz was an awesome experience.
From Raditz to Nappa/Vegeta trashing everyone, to Kaioken Goku vs Vegeta, the terror of Frieza during Namek ( the scene of Krillin/Gohan/Bulma sensing Frieza and his goons flying near them was absolutely terrifying), Goku arriving in Namek trashing the Ginyu forces, Vegeta's death asking Goku to take care of Frieza all of them led step by step to the legendary moment of SSJ1.