Jack Rabbit is a gray hare with a black eye patch on his left eye, and wears rebel "commando"-style clothing. He is a Freedom Fighter that has turned into a renegade.
He leads a band of rebels called the Sand Blasters out in the Mobius desert, the group living in a force field protected town called Sand Blast City. Sonic and Tails crash landed in the desert during their global search for Ixis Naugus, and they hitched a ride with Jack and his rebels. Their opinion of the group changed when they learned that Sand Blast City worshiped Sonic the Hedgehog, who was a god in their eyes after killing Dr. Robotnik.
Meeting Sonic and TailsSonic helped Jack's group fend off a savage horde of Robians, who are the reason Sand Blast City is protected by the force field. It later turned out that Jack purposely crashed Sonic's plane and hid it in the city, making sure he'd never leave so he could protect them from the Robians forever. Not about to stay, the Hedgehog found the controls of the force field hidden inside the monument statue of himself and destroyed them both. The shield dropped and the Robians invaded the city; Sonic and Tails managed to escape, leaving Jack and his rebels to their enemies. (StH #62, #63)
Later, Bunnie Rabbot was attacked and imprisoned by Jack after receiving a fake transmission asking for help. The message was intended for Sonic but Jack decided to use Bunnie to bait Sonic instead and locked her up in an impenetrable cell with the savage Robians that had overrun Sand Blast City after the shield was destroyed, all of whom had been captured. Bunnie bravely battled the Robians and managed to break free from her cell, leaving the Robians to attack Jack and his Sand Blasters once again while Bunnie escaped. (StH #119)
Fighting the Dark Legion
By 3237, the Robians attacking Sand Blast City had been returned to normal; however, they eventually went to Dr. Eggman, undergoing Legionization and becoming a new chapter of the Dark Egg Legion. The Legion began to run and protect the nearby Oil Ocean Refinery, which put them into conflict with the Sand Blasters, who desired it for themselves. Wanting an edge, Jack sent out a call for aid; to his displeasure, the ones who responded where none other than Sonic and Bunnie. However, when Sonic arrived in Sand Blast City, he accused the Sand Blasters of attacking Bunnie. Jack denied having done such a thing, but eventually it was realized that one of the city's anti-Legion measures must have disrupted her cybernetics. Jack then realized that Bunnie was likely captured by the Legion.
Seeing an opportunity, Jack offered Sonic a deal; if Sonic would help the Sand Blasters capture the Oil Ocean Refinery, they'd help rescue Bunnie. Not entirely happy with the situation, Sonic nonetheless agreed, and Jack laughingly told his gang that Sonic was willing to let bygones be bygones. He then lead Sonic further into the city, explaining the situation. Jack claimed that after the Robians had been restored, he had welcomed them into the city, only for them to run back to Eggman to be Legionized. He approached a DEL prisoner with disgust, pulling back her hood to reveal a cringing girl with cybernetic features.
Sonic found it hard to believe that the former Robians willingly went back to Eggman, but Jack insisted this to be the case. The next day, the Sand Blasters set out for the refinery, Jack riding in a vehicle with Sonic and Avery. Peering through binoculars, Jack noticed that Bunnie was riding in a Legion saucer and idly commented that she seemed to have gone traitor. Much to Jack's annoyance, Sonic quickly left the convoy, deciding to rescue Bunnie first.
When it seemed as though Sonic and Bunnie had begun to fight each other within the refinery, Jack was happy to sit back and watch, not fond of either of them. However, it wasn't too long before he saw how much damage was being done. Enraged, he realized that Sonic and Bunnie were using the fight as a pretense to destroy as much of the refinery as possible. Jack angrily ordered his Freedom Fighters to move in, and soon the Sand Blasters were fighting the Legion within the refinery.
Jack and Avery, armed with a rocket launcher, soon found Sonic and Bunnie; Jack told Avery that if he had a clear shot, he should take it. Avery worried about the refinery being further damaged, but after considering a moment, Jack grinned and decided it would be worth it. However, when Avery attempted to fire, he was struck by the Legion's Grandmaster, Beauregard "The Baron" Rabbot; the rocket ended up being fired into the sky. Jack called the Grandmaster, the leader of the former Robians, an ungrateful backstabber; Beauregard replied "Don't you dare lecture me, Jack."
Gripping Jack's arm with his robotic hand, Beauregard forced him to drop his weapon. Bunnie soon ran over, and Jack was surprised to hear her address Beauregard as "uncle." As the two talked, Jack attempted to recover his gun, but Bunnie snatched it away before he could and later crushed it in her robotic hand. To everyone's surprise, a massive explosion suddenly occurred, blowing them all back; Avery's wayward rocket had landed in the refinery's oil pits and exploded. With the battle going badly and the refinery no longer usable, Jack and his group fled.
A Chaotix Plan
Jack and his men received an unexpected ally in their efforts some time later in the form of Mighty the Armadillo and Ray the Flying Squirrel of the Chaotix, who introduced themselves to the Sand-Blasters as "Flex" and "Jitters", respectively. The super-strong Armadillo quickly proved his usefulness, picking up and throwing a tank that menaced Jack, Avery, and others as they were making a raid on the Oil Ocean Refinery. Jack proved less hospitable when Mighty's friends Vector, Espio, and Charmy arrived looking for him, firing off a warning shot at Vector's feet and demanding to know why they were there. After a brief scuffle that ended with Jack holding Vector at gunpoint and the Crocodile's teammates captured, Jack and his team marched the trio into the city. After informing them that they could choose to join the Sand-Blasters and serve loyally or be terminated, he called upon their two disguised friends. Mighty made a show of bossing his teammates around, informing Jack that he would soon teach them to be loyal to him amusing the rabbit greatly.
Jack's amusement ended the next day, when he learned that Mighty had been captured by the Legion, who were calling for a prisoner exchange as they had done on a number of previous occasions. Barging in on Mighty's teammates, he grabbed Ray and demanded to know what had happened, and was informed by Espio that the armadillo had supposedly gone after Beauregard by himself. Jack scoffed at the notion that the new trio would be as valuable to him as Mighty, and was further displeased by Mighty's alleged renegade actions. Regardless, he decided to deploy the group as they met with Beauregard, revealing that he had several Legion prisoners available for trade. Inspired by Mighty's supposed solo mission, however, he determined that he had no intention of releasing any of his prisoners-instead, he would use it as an opportunity to rid himself of the Grandmaster once and for all.
Accompanied by his squad, some other denizens of Sand Blast City, and the Chaotix, Jack met Beauregard and the Legion at the exchange point. Going against previous proceedings, Jack demanded that the Baron release Mighty first, but the Baron refused based on Mighty's abilities. After learning that Beauregard had no demands other than the return of his own people, Jack expressed surprise, and the Baron responded that forcing Jack to plead for the return of his best operative was satisfying enough. As the two lines of prisoners crossed the space between the two parties, Jack sprang his trap: some of the released Legionnaires were in fact disguised Sand-Blasters. In the course of the battle, the Chaotix revealed their true identities, and a furious Jack ordered his forces to eliminate them, Mighty included. When Jolt failed to do the job, Jack ordered Murphy, one of his tank operators, to take out Mighty and the Baron, despite the presence of children on the Legion carrier. The attack succeeded only in harming Mighty's sister and Legionnaire Matilda the Armadillo-the whole reason Mighty had joined Jack's team in the first place-and Mighty attacked Jack and his team in a rage, demolishing their tanks and jeeps.
- Cutting room floor story ideas included Jack Rabbit becoming a sub-boss to Dr. Robotnik.
- Jack Rabbit's colors and design makes him resemble Bugs Bunny. The Sand-Blasters soldiers also are either named and/or based on Looney Tunes characters. On top of that, the cover of Sonic Universe #47 has him saying "What's up, Croc?", which is a reference to Bugs Bunny's famous line "What's up, Doc?"
- Although Tails asks the question, the reason why the Robians attacking Sand Blast city never gained their free will back from the Ultimate Annihilator's explosion like all other Robians remains unanswered.
- The name "Jack Rabbit" dervives from "jackrabbit" an alternate name for a hare.