Published on: October 15, 2025
Over the years, Game Freak’s approach to mainline Pokémon titles has captured the attention of both long-time fans and industry analysts.
Recent disclosures from the so-called “Teraleak”—with detailed reports by Centro Leaks and choumomoko—have confirmed numerous early concepts and major design shifts that shaped Pokémon Sword and Shield and Pokémon Scarlet and Violet for Nintendo Switch.
These insights illuminate the evolution of some of the most successful Nintendo Switch exclusives in the franchise.
Pokémon Sword and Shield: Unveiling Primitive Beginnings
Game Freak initially envisioned Pokémon Sword and Shield (released in November 2019 for Nintendo Switch) with a pre-historic motif.
Early drafts featured three beta starter Pokémon: a Cenozoic Fire Dog, an unnamed Cenozoic Water type, and a Cenozoic Grass Rabbit.
The project operated under the codename 'Rex' and divided the regional Pokémon into Cenozoic, Mesozoic, and an additional class, drawing inspiration from Earth's historical eras.
Cenozoic Pokémon were designed to be appealing and marketable, especially to younger audiences, while Mesozoic species allowed for quirkier and joke-based monster designs.
According to the leaked materials, Sword and Shield’s Pokédex was set to include three new Mythical Pokémon themed around Fantasy, Invention, and Discovery.
The game’s working titles included options like Pokémon King and Pokémon Queen, with other names such as Cosmo & Galaxy and Order & Change deliberated before the final decision.
A regional Zubat was also once developed but later scrapped prior to release.
The gyms were detailed as city landmarks, each managed by a competitive Leader and supported by trainers, sponsors, and large stadium audiences.
An early league system depicted persistent trainers unable to progress, highlighting their perseverance.
Innovative mechanics included prototype 'Power Spots'—special locations on the map enabling unique Pokémon transformations—and an 'abnormal G-State' with distinctive visual and animation cues.
Early plans also documented a modernized companion system reminiscent of Pokémon Diamond and Pearl, featuring Pokémon following trainers on the field, and a 4-vs-1 battle mechanic combining player and AI action for challenging encounters.
Narrative plans centered on legendary Pokémon known in myth as a 'King' and 'Queen.' Contrary to local lore that both had died, the real story involved their secret preservation and the rise and fall of their region, culminating in societal collapse due to their absence during a pivotal war.
Pokémon Scarlet and Violet: A Drastically Different Journey
Developmental details for Pokémon Scarlet and Violet, which launched on Nintendo Switch in November 2022, reveal an ambitious and evolving storyline.
The games originally restricted the main plot to four compulsory gyms, with the option to challenge an additional four.
Gym Leaders' teams dynamically scaled based on the number of badges earned.
Key characters like Nemona and Arven persisted throughout story revisions, while Penny was not always present in early concepts.
A significant planned twist involved Team March, an antagonistic faction inspired by a marching band.
The region’s Champion had vanished, and Team March’s commander self-identified as the new reigning champion.
Jacq, a major figure, was ultimately revealed as the fourth Gym Leader after a pivotal turn of events.
After Jacq’s defeat, Team March nearly overcame the protagonist, but the Legendary Pokémon Koraidon or Miraidon would intervene at a critical moment.
Players were to be transported by the Legendary Pokémon to a mythic island, reminiscent of the Alola region’s trial system, where eight open-ended challenges (trials) offered varied progression and personal growth for each main character.
Throughout the trials, players discovered memos from a secretive former champion who had tried to turn the island into a Pokémon paradise, only to face exile and personal loss.
The finale involved a dramatic confrontation with a mysterious 'Champion' wielding a new turtle-themed Legendary Pokémon.
After victory, the protagonist would obtain the Champion’s Proof, the turtle Pokémon, and a cryptic letter—wrapping up a narrative arc characterized by introspection and ambiguous treasures.
The post-game was designed to enable completion of any remaining gym battles and a final showdown with Nemona to officially determine the regional Champion.
The sequence of developer milestones and narrative pivots documented in the leak provides a rare view into Game Freak’s creative process and willingness to rethink major franchise tentpoles.
These verified revelations, confirmed by sources such as Centro Leaks and choumomoko, offer fans and industry observers a unique window into Game Freak’s philosophy as one of Nintendo’s most pivotal partners.
For Pokémon Sword and Shield and Pokémon Scarlet and Violet, the road from early concept to the finished product was not only long but brimming with fascinating innovation and shifting ambitions.
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