On this page of guide Dragon Ball Z Kakarot, we are going to reveal the complete progress of theSelfish Bulma sub story.
Episode: Frieza Saga - Episode 4
Period: From "The Latent Power of Son Gohan" to "The Fearsome Commando Ginyu"
On Namek, speak with Bulma (pictures1and2). She asks you to collect alien fish fins and iron ore.
1 picture
2 picture
Iron ore can be found very easily by destroying the deposits of the planet (picture3). For the fins, simply catch the fish on Namek (pictures4and5).
3 picture
4 picture
5 picture
Return all of these items to Bulma to close this sub story.