- You may be looking for Sherman Walrus, Rotor's father in the Pre-Super Genesis Wave Timeline.
- You may be looking for the article on the Northern Tundra or for Frost Walrus of the Mega Man X series.
Not much is known about Tundra's early life. Prior to Ivo Robotnik's coup d'état, Tundra fought in a fierce territorial war between his tribe and Akhlut's warriors. But not everything was well back at the homefront. Tundra was not at all pleased when his son Rotor would come up with any new ideas, getting violently angry at his son for inventing gadgets and technology. This abusive lifestyle was enough to make Rotor leave home to find a more welcoming environment in the city of Mobotropolis. Their home village was later invaded by Dr. Eggman, who recognized Tundra's strength and promptly selected him to serve as Artika's Egg Boss. (FCDS: #8; StH: #276; SU: #84)
Dr. Eggman arrived at Tundra's base and was provided a transport to the Death Egg by him. Eggman demonstrated familiarity with this new Egg Boss, a sign that his mind was adjusting to the new reality that had been created by the improperly reversed Super Genesis Wave. During the ensuing Shattered World Crisis, he would engage Sonic the Hedgehog while the hero and his fellow Knothole Freedom Fighters were searching for the Gaia Keys. After being "captured" by his Egg Soldiers, Sonic and Rotor were delivered to Tundra, who revealed himself to his horrified son. Rotor was quick to accuse him of abandoning their home village for Eggman, only for Tundra to inform him what had taken place. Tundra proceeded to accuse Rotor of using his inventions as a shield before having the pair thrown in a cell. Unfortunately for Tundra, his act played right into the heroes' hands, as they had allowed themselves to be taken in by his forces in order to rescue Jari-Thure and Sarianna, the keepers of the local Gaia Keys whom Tundra had captured. With all four escaped, Tundra regarded the skies contemplatively, unaware that Rotor was doing the same elsewhere. (StH: #255, #276)
Tundra would later be recruited for a mission with all the other Egg Bosses to retake Eggmanland from Walter and Wendy Naugus. To his chagrin, he was paired with his old enemy Akhlut in shutting down the factory's summoning spire. During the mission, Akhlut reminisced with Tundra about their past as rival tribes. When Akhlut eventually remarked that Tundra would make an excellent subordinate where he failed as a leader who could not even save his own family, Tundra engaged in a fight against Akhlut. (SU: #83, #84)
Tundra has the attitude of a warrior: he lives by might and honor and abhors those who do not share this code. Tundra firmly believes that strength is what defines the character, hence his loyalty to Eggman and his detesting of Rotor's intellectual pursuits; he reacted violently to his young son's attempts at innovation and invention, and these sentiments seem to have transferred to Rotor himself. He also seems to regard Sonic-and presumably the other Freedom Fighters-as an anarchist simply for being a "coward" for denying Eggman's might. Despite his animosity, Tundra does hold some regret towards his personal losses, including his warriors, wife, and even Rotor, feelings that were proven and provoked by Akhlut.
Like Rotor, Tundra is a purple-furred Walrus with a pale belly and a muscular form, though unlike his son he possesses white eyebrows and matching facial hair. He also has green eyes and wears white gloves, and in Rotor's childhood was seen to sport a bandoleer on which he carried a spear and a number of other weapons. After becoming an Egg Boss his natural tusks were apparently replaced with metallic/mechanical ones, and his face sported a number of scars. He also adopted an arctic Eggman uniform with black pants, a blue parka with a hood, and yellow-orange glasses.
In Rotor's youth Tundra was seen to carry several weapons, likely indicative of experience as a hunter and fighter. He is evidently possessed of great strength as well, enough that Eggman was impressed and thus offered him the role of Egg Boss. Tundra also possesses the ability to freeze his enemies with his powerful icy breathe. Whether this ability terms from his cybernetics is unknown.
- Tundra is the first case of a villainous Walrus native to the Prime Zone, and the first Walrus villain not to be an evil counterpart of Rotor such as Boomer.
- Tundra is the first new relative of a Knothole Freedom Fighter to be introduced in the Post-Super Genesis Wave timeline. He is also the first of said relatives to replace a relative from the previous timeline, having taken over his role of Rotor's father from Sherman Walrus. However, his conflict with his son and his membership in Eggman's forces are reminiscent of Beauregard Rabbot.
- According to Aleah Baker, Tundra is 52 years old.