Shadow’s stages often involve chaos blasts and vehicles. Replacing the dark brooder with Tails creates a bizarre, adorable cognitive dissonance. Plus, Tails’ flight trivializes some of the more frustrating platforming sections.
This is the star feature. The mod doesn't just paste a model onto Sonic’s skeleton. It port the target character’s physics parameters into the P-06 engine. For example: sonic p06 character swap mod