Regular Show in Mobius style would feature Mordecai and Rigby as anthropomorphic animals inhabiting a vibrant, stylized version of the park, now resembling a sprawling, interconnected zone within the Mobius landscape. The park's familiar locations – the park itself, the house, the coffee shop – would be reimagined with a heightened sense of speed and dynamism, incorporating elements of classic Sonic environments like loop-de-loops, springboards, and hidden pathways. The overall aesthetic would be a blend of Regular Show's quirky humor and Sonic's fast-paced action, with a color palette that's both bright and saturated.

Mordecai, perhaps a speedy blue jay akin to Sonic himself, would retain his laid-back personality but possess enhanced agility and reflexes, utilizing his abilities to navigate the environment and overcome challenges. Rigby, possibly a mischievous raccoon with a penchant for chaos, could be a more unpredictable character, utilizing gadgets and tricks to complement Mordecai's speed. Their boss, Benson, might be a stern, imposing badger, perhaps even a rival to a Mobius-styled Dr. Robotnik figure. Muscle Man and High Five Ghost could be reimagined as powerful, enigmatic characters with unique abilities, perhaps Muscle Man as a hulking bear with super strength and High Five Ghost as a spectral entity capable of phasing through obstacles. Pops would likely be a wise, elder figure, perhaps a mystical owl or fox, possessing knowledge of the Mobius landscape and its secrets.

The episodic structure would maintain Regular Show's comedic timing and absurd scenarios, but the action sequences would be significantly amplified. Instead of mundane tasks, Mordecai and Rigby might find themselves racing through treacherous terrains, battling robotic enemies, or collecting Chaos Emeralds hidden throughout the Mobius-styled park. The humor would still be present, but the stakes could be higher, with the fate of the Mobius-styled park or even the entire zone at risk. The overall tone would be a unique blend of the two franchises, retaining the heart and humor of Regular Show while injecting the high-octane action and vibrant world of Sonic the Hedgehog. Think of it as a blend of the surreal humor of Regular Show with the fast-paced platforming and world design of Sonic, resulting in a visually stunning and hilariously chaotic adventure. The antagonists could range from classic Sonic villains adapted to fit the Regular Show universe to entirely new characters born from the fusion of both worlds. The possibilities are endless, creating a truly unique and exciting experience.