Netfree City is the primary location of SatMS and much of Super Jump Punch! comics. In the Super Jump Punch! continuity, Netfree City is situated in the upper half of what was, thousands of years ago, the form of the Mushroom Kingdom; its location was never set down in the SatMS continuity. It has the population of 3,487, and is hidden by the sprawling land of the Rainbow Meadows.
During the war against Bowser, Netfree City was the site of the Power Fighters. Much later, but before Dr. Wily arrived on the scene, King Toadstool made Netfree the new capital of the Kingdom of Mushroom, to speed his country's economic and social recovery.
In the fictional universe of the Super Smash Brothers (specifically the SatMS and Super Jump Punch! continuities), Netfree City (later known in the comics as Netfreeville) is the base of operations for the Power Fighters, a small band (led by Mario and Sonic) dedicated to overthrowing the evil Bowser.
Both series initially depicted Netfree as a hidden city located in the Rainbow Meadows on planet Mubix. In the comics, however, it grows into a thriving city that is impossible to keep hidden, and it enters into a state of open war with the Bowser Empire under Bowser. Netfree was later destroyed, and the populace was relocated to the city of New Mubitropolis.
Located deep within the heart of the Rainbow Meadows, Netfree City is accessible only through hidden entrances at various points in the meadows. Originally (as shown in SatMS), it was a hidden retreat for the royal family, who otherwise lived in the capital city of Mubitropolis. When Bowser took over and banished the King, he began to round up the citizens of Mubitropolis to be roboticized. Mario, Peach, and their friends were taken to Netfree by their Pokémon caretaker, Nurse Joy. Eventually, the group would become the Power Fighters and would use Netfree as both their home and center of operations. Mubitropolis, under the control of Bowser, was renamed Megatropolis and became a polluted, factory-infested wasteland.
In SatMS, it has always been depicted as an above-ground City located deep in the meadows (see image above). The heart of the City is the living quarters, small thatched-roof huts where the Power Fighters live.
Super Jump Punch!Edit
In the Super Jump Punch! comics, the home base of the rebel Power Fighters was literally underground, accessible through a small tree-stump with a hinged top. A slide leads from the tree-stump down into the extensive underground caverns that form the main control center of Netfree City. (This depiction, like many elements of the early issues of the series, was based on that seen in the SatMS pilot episode) As time went on, the Super Jump Punch! version of Netfree became an above-ground City to look more like the SatMS version in order to keep a better sense of continuity. After the SatMS series was cancelled, Super Jump Punch! continued using this depiction.
Netfree remained the hideaway of the Power Fighters and the former inhabitants of Mubitropolis until Dr. Wily was seemingly killed by the Ultimate Annihilator. Netfree was targeted by this weapon, but instead of being destroyed was sent three hours further into the future. Afterwards, it became the residence of Mubix' Rubans, who left Mubitropolis to escape persecution from their prejudiced Muban brethren.
Much later in the Super Jump Punch! continuity, Netfree developed into a bustling city and has even become the new capital for the royal family. The newly renamed Kingdom of Netfree — capital of the Kingdom of Mushroom — was no longer hidden from Bowser, as the Power Fighters are now in a state of open war against his Koopa Empire. The city even came to include a recreation of the original Netfree, christened Power HQ which was constructed for Mario's birthday, and afterwards served as the Power Fighters' base of operations away from the new capital. Unfortunately, Netfree was destroyed in a massive assault by Bowser not long afterwards, the city's population having relocated to the newly-christened New Mubitropolis. Power HQ however was shown undergoing reconstruction in recent issues, with Waluigi and Luigi performing the bulk of the work.