Fun Facts!

Cell is the only main villain Goku does not bite in battle.
Piccolo is only 4 years older than Gohan.
Throughout all 3 series Bulma has 17 hairstyles.
Baby is the only main antagonist Goku beats as a Super Saiyan 4.
Despite usually calling him Kakarot, Vegeta does call Goku by his Earth name 8 times.
Technically Gohan, not Goku, beat Vegeta on Earth.
There are over 25 different kinds of the Kamehameha.
Over the course of Dragon Ball and Dragon Ball Z Goku uses the Kamehameha 97 times.
When Goku was born Master Roshi was 307 years old.
The fight between Goku and Frieza is the longest fight to date in anime history. It takes roughly 3 and a half hours of screen time (briefly interrupted after Goku uses the Spirit Bomb).
8 Saiyans survived the destruction of Planet Vegeta.
Videl, Mr. Satan's daughter, is an anagram for "devil".
Counting movies and GT, the Spirit Bomb is used 8 times.
Tien fought every major villain except Frieza (being dead at the time).
Tien and Chiaotzu are the first characters seen flying.
Yamacha is killed, severely injured, and/or already dead in every saga of Dragonball Z.

What are 25 different kinds of the Kamehameha?