1: 1. Goku's Saiyan heritage gives him immense power. 2. The character Vegeta was originally a villain. 3. Frieza is one of the most powerful villains in the series.

2: 4. The Dragon Balls can grant any wish when collected. 5. Goku has died multiple times throughout the series. 6. Cell is a bio-engineered android with immense power.

3: 7. The character Krillin has died multiple times as well. 8. Gohan is Goku's son and possesses incredible potential. 9. The character Piccolo was once a villain but became a hero.

4: 10. Dragon Ball Z introduced the concept of Super Saiyans. 11. The fusion technique allows two characters to combine their power. 12. The androids in the series are created by Dr. Gero.

5: 13. The character Yamcha is known for his unfortunate luck. 14. Bulma is a brilliant scientist and inventor in the series. 15. The character Trunks is from the future and has a complex backstory.

6: 16. The character Tien has a unique third eye and powerful techniques. 17. The Namekian race includes characters like Nail and Kami. 18. The character Majin Buu is a powerful and ancient being.

7: 19. The Great Saiyaman is a superhero alter ego of Gohan. 20. The character Goten is Goku's younger son with incredible potential. 21. The Z Fighters are a group of skilled warriors defending Earth.

8: 22. The character Raditz is Goku's brother and an antagonist. 23. The character Bardock is Goku's father and a legendary Saiyan warrior. 24. Master Roshi is an ancient and wise martial arts master.

9: 25. The character Chi-Chi is Goku's wife and the mother of Gohan. 26. The character Bulma is Vegeta's wife and the mother of Trunks. 27. The tournament of power is a battle royale among universes in the series.