After their fights and struggles they all reunite at the Tenkaichi Budōkai three years later and meet Kame-Sen’nin‘s rival and Taopaipai’s brother, Tsuru-Sen’nin and his students who vow to exact revenge. Krillin is killed and Goku chases after the killer, leading him to Piccolo Daimao, who easily defeats him. The samurai Yajirobe takes Goku to Karin, where he receives healing and a power boost. Meanwhile Piccolo fights and kills Kame-Sen’nin and Chaozu and uses the Dragon Balls to regain his youth before destroying Shenlong. Goku then begins his battle with Piccolo Daimao, who, just before dying, spawns his son/reincarnation Piccolo. Karin informs Goku that Kami (God), the original creator of the Dragon Balls, might be able to restore Shenlong so that he can wish his friends back to life, which he does. He also stays and trains under Kami for the next three years, once again reuniting with his friends at the Tenkaichi Budōkai. Piccolo Jr. also enters the tournament to avenge his father, leading to the final fight between him and Goku. Goku just narrowly wins before quickly leaving with Chi-Chi and lastly they get married.
http://www.youtube.com/watch?v=iiGxWlmnS2E

DragonBall Z
After 5 years, Goku meets his older brother Raditz, who reveals to him that they are members of a nearly extinct race called the Saiyans (Saiya-jin).  Then he learns that the Saiyans had sent him to Earth as an infant to conquer the planet for them, but he suffered a severe head injury soon after his arrival and lost all memory of his mission, as well as his blood-thirsty Saiyan nature. But Goku refused to help his brother and by sacrifising himself and with the help of Piccolo they killed him. However, Goku is revived a year later by the Dragon Balls, after training in the afterlife, with the North Kaiō, in order to save the Earth from Nappa and the Saiyan prince Vegeta. In the battle Yamcha, Chaozu, Tenshinhan and Piccolo are killed. The death of Piccolo vanished the DragonBalls due to Piccolo being one with Kami. However, they learn that Piccolo and Kami are called Namekians (Namekku-seijin) and they have their own planet Namek (Namekku-sei) where exists the planets own DragonBalls. So Goku decided to go to Namek to revive his friends. However, the galactic tyrant Freeza is already there with his minions and Vegeta (who later teams up with Goku to fight the Ginyu Force). The final long battle with Freeza and Goku comes to a close after Goku transforms into a legendary Super Saiyan (Sūpā Saiya-jin) and avenges the lives of billions across the galaxy.

After three years, the former Doctor Gero (the former leader of Red Ribbon Army) appeared with a group of Androids (Jinzōningen, “Artificial Humans”) he created, seeking revenge against Goku. Unfortunately, by the same time another life form make his appearance, Cell, who absorbed 2 of the Androids to transform into his ”perfect form”. All the heroes together tried to protect Earth, but Goku sacrificed himself for nothing. Though, Gohan in his Super Saiyan 2 form killed Cell and avenged his father. I have to add that the final blow is known to Gamers, as ”Father-Son Kamehameha” and Gohan used only his right hand. (you may see in some videos that Gohan uses his left hand, that’s edit for the copyrights. In my old collection of the DBZ original episodes, Gohan uses his right hand.)

Here you can see when Goku achieved his Super Saiyan form for the first time, Gohan’s Super Saiyan 2 form and a little of the Father-son Kamehameha.

Seven years later, Goku revived and his allies are drawn into yet another fight for the universe against a magical being named Majin Boo. After a lot of battles Goku achieved to destroy Boo by borrowing the power of Earth. Ten years later, at another Tenkaichi Budōkai, Goku meets Boo’s human reincarnation, Oob. Leaving the match between the two of them unfinished, Goku takes Oob away on a journey to train him.

Series and movies

Dragon Ball Z, 1989–1995
Genre: Action, Adventure, Comedy, Martial Arts, Shounen
Episodes: 276

Dragon Βall GT*, 1996-1997
(*Unlike the first two anime series, it is not based on Akira Toriyama’s original Dragon Ball manga, side story of Dragon Ball)
Genre: Action, Adventure, Comedy, Fantasy, Magic, Sci-Fi, Shounen, Super Power
Episodes: 64

Dragon Ball Kai*, 2009-2013
(*it is a new version of Dragon Ball Z created from the original footage, English dub known as Dragon Ball Z Kai)
Genre: Action, Adventure, Comedy, Shounen
Episodes: 97

Dragon Ball Movies

• 1986, Dragon Ball Movie 1 – Curse of the Blood Rubies
• 1987, Dragon Ball Movie 2 – Sleeping Princess In Devil’s Castle
• 1988, Dragon Ball Movie 3 – Mystical Adventure
• 1996, Dragon Ball Movie 4 – The Path to Power
• 1989, Dragon Ball Z Movie 1 – Dead Zone
• 1990, Dragon Ball Z Movie 2 – Worlds Strongest
• 1990, Dragon Ball Z Movie 3 – The Tree of Might
• 1991, Dragon Ball Z Movie 4 – Lord Slug
• 1991, Dragon Ball Z Movie 5 – Cooler’s Revenge
• 1992, Dragon Ball Z Movie 6 – The Return Of Cooler
• 1992, Dragon Ball Z Movie 7 – Super Android 13
• 1993, Dragon Ball Z Movie 8 – Broly: The Legendary Super Saiyan
• 1993, Dragon Ball Z Movie 9 – Bojack Unbound
• 1994, Dragon Ball Z Movie 10 – Broly: Second Coming
• 1994, Dragon Ball Z Movie 11 – Bio-Broly
• 1995, Dragon Ball Z Movie 12 – Fusion Reborn!
• 1995, Dragon Ball Z Movie 13 – Wrath of the Dragon
• 2013, Dragon Ball Z Movie 14 -  Battle of Gods 
  

2013, And a two-part hour-long crossover TV special between Dragon Ball Z, One Piece and Toriko aired in 2013, referred to as Dream 9 Toriko & One Piece & Dragon Ball Z Super Collaboration Special. ,