STORY GAMEPLAY
ACTION: Speed Stages
Sonic: Open Action Stages more focus on exploration
Shadow: Linear Action Stages with light combat
Blaze (DLC): Either ish, more focus of adrenaline and tricks
FLYING: (not what you expect): Plane Stages
Tails (He will be treated well dw)
COMBAT:
Knuckles: Heavy Combat
RUN N' GUN: Mech but not mech (basically shooting stages on foot)
Silver: NO MECH JUST PSYCHOKINESIS
STEALTH: Those jewels are mine
Rouge: Similar moveset to SA2 Knux but with Stealth mechanix
PUZZLE: Big brain time
Amy: Jumpy with puzzle elements + RUN FROM METAL SONIC
I have more ideas too much and will post more