key: =100% completion, =regular completion, =completed with save states

Genesis + Add-Ons

Game Gear/Master System

Arcade (not counting things like Waku Waku Sonic Patrol Car)

Pico

Saturn

Dreamcast

GameBoy Advance

PS2/GCN/Xbox****

DS

Xbox 360/PS3/Wii****

PSP

Wii U/3DS

Mobile/PC

PC/Switch/PS4/Xbone****

*beaten as Charmy+Heavy
**might skip
***don't know if i'll be able to find a way to play this one
****the games are for the most part multiplatform, with a couple exceptions and a couple cases of extras note that for the most part ports are left out, excluding ones that i find notably different enough from the original. mario and sonic/all-stars/superstars games are also left out. other media...

Cartoons

key: =full watchthrough, =sub only (if applicable), =dub only (if applicable)

Comics

key: =full comic plus spinoffs (if applicable), =main comic only (if applicable)