Sonic the Hedgehog 4 is the collective term for two episodic Sonic the Hedgehog video games; Sonic the Hedgehog 4: Episode I and Sonic the Hedgehog 4: Episode II, released in 2010 and 2012, respectively. It is a sequel to Sonic the Hedgehog 3 & Knuckles, marketed as being a return to the franchises' 2D roots.
- Platform: Android, Nintendo Wii, Sony Playstation 3, Windows, Windows Phone, Xbox 360
