Garlic Junior is the main antagonist of the movie Dragon Ball Z - Dead Zone. He reappears as the main antagonist in the filler anime gaps between Frieza and Trunks saga.
Garlic Junior's father was wanted to be the guardian of Earth but Kami didn't allow him for his evil selfishness. Kami imprisoned him in the realm of darkness. For this Garlic jr was seeking revenge on Kami. He appeared in the Dragon Ball Z movie : Dead Zone and collected all 7 balls and wished for immortality. He is the only antagonist of the series who succeeded to become immortal. Later he was defeated by Gohan by throwing him to the portal of Dead Zone. He reappeared again in the Dragon Ball Z series: Garlic Jr. saga by escaping from the dead zone. He was defeated again by Gohan but this time Gohan destroyed the Makyo star permanently, the power source of Garlic jr and sent him to the Dead Zone.
He is created by Toei animation to fill the episodes gap between Freiza and Trunks saga. He is not present in the Akira Toriyama's original manga.
He is the main antagonist of the movie: Dragon Ball Z - Dead Zone. To seek the revenge of his father's demise, he sent a squat of his henchmen to collect all the 7 Dragon balls around the world and then wished for immortality. The eternal Dragon grants his wish of immortality and thus become a truely immortal evil being of Dragon Ball history. When he held Gohan as a captive for the 4th star dragon ball, he sensed the hidden power of Gohan and wanted to make him his disciple. Goku and Kami arrives to rescue and a brief fight occurred between Goku and the minions of Garlic Jr. Kami strikes on Garlic jr but failed to beat him. Piccolo arrived to settle down the business. As both Goku and Piccolo became too much for Garlic jr. to handle, he transformed into a gigantic form. But still he had no match against the combined power of Goku and Piccolo. Frustrated Garlic Jr. opened a portal to the Dead Zone, sucking everything into void. Goku and Piccolo both were about to suck by the Dead Zone. Watching the suffering of his father, Gohan's hidden power waked up and his extraordinary power overpowered Garlic jr. and sent him to the Dead Zone to be trapped for all of eternity.
Four years later after the event of Dead Zone, Garlic Jr. escaped the Dead Zone when the source of his power, Makyo star comes closes to the axis of Earth. He gathers his team of demon henchmen and arrives in Kami's lookout. He then captured Mr. Popo and Kami in a small magical bottle. He spreads the Dark water Mist in the Earth's atmosphere to take control of the Earth's population. The mist infected most of the lives of planet except few. Master Roshi, Yamcha, Bulma, Chichi, Puar and Oolong all were infected by the mist and became servents of Garlic Jr. Gohan, Krillin and a few others were survived including Piccolo. They both proceeds to the lookout and a fight ensues between them and Garlic junior's henchmen. Later Piccolo arrived as an infected and charges to Gohan and he infected Krillin in the process by biting him in the neck. Having found Garlic Jr off-guard, Piccolo took the magic bottle and freed Kami and Popo. He revealed to be not infected, just acted for the perfect opportunity to steal the bottle. Krillin was acted as well for the sake of Piccolo's plan. Frustrated Garlic jr. transformed to his 2nd form. At the same time Kami and Popo were on their way into the inside of the lookout to use the sacred water to reverse back the effects of the Black water Mist. As Gohan and Piccolo had upper hand, Garlic jr. reopened the portal of Dead Zone. Gohan then fires a powerful Masenko attack into the Makyo star, destroying it and making Garlic jr. powerless and fell into the Dead Zone once again with no hope for return. This is also the first victory of Gohan and Piccolo without the help of Goku and Vegeta.
Garlic Jr. can increase his strength and power by transforming into a gigantic shape. He is only lacks speed for his huge muscle size. He is called Super Garlic Jr. in this state. This form is not permanent. As his energy source is a star called Makyo, if the star is destroyed he will revert back to his original form. His increased muscles in this form give him a great amount of physical strength boost and durability.
He became immortal by using the dragon balls.
For his immortality, he can regenerate any damaged part of his body. He can heal from any type of wounds and physical damage.
Garlic Jr. can open a portal of void by cracking the dimension to trap his opponents for eternal life.
His power in normal form is not much of a challenge for Piccolo. His power increases tremendously after the transformation. His strength increases ten fold of his normal state. As his power source is Makyo star, he can stay in this state as long as Makyo star keeps visible in sky. After piccolo's fusion with Nail in planet Namek, he seems to stronger than Garlic Junior's transformed state.
His transformed state has much durability than normal form but not strong enough to overcome Piccolo and Gohan's higher level energy blast. His stomach was blown through a massive hole by Gohan but was survived for his regeneration ability.
His transformed state doesn't increase his speed that much as his power does. He was shown to not capable to keep up with Piccolo. He couldn't even lay a single hand on him until Piccolo got weaken by Kami. For his slow speed he has less advantage on battlefield unless the opponent is slower than him.
According to Famicom game Dragon Ball Z : Kyoshu saiyan - Garlic jr's power level in the movie Dead Zone is 2500 in base and 3500 in transformed state. According to Dragon Ball Z : Anime Adventure Game - his power level in Garlic jr. saga is 1500000 (1.5 Million).
List of Garlic Junior's henchmen seen in Dragon Ball Z :
Dragon Ball Z: Dead Zone
The first Dragon Ball Z movie.