Sonic the Hedgehog 4

Sonic the Hedgehog 4 is a 2.5D side-scrolling game for downloadable consoles. The game has episodic parts in the series.

Games

 * Sonic the Hedgehog 4: Episode I
 * Sonic the Hedgehog 4: Episode II
 * Sonic the Hedgehog 4: Episode Metal (DLC extra)

Playable

 * Sonic the Hedgehog
 * Miles Tails Prower (Sonic the Hedgehog 4: Episode II)
 * Metal Sonic (Sonic the Hedgehog 4: Episode Metal)

Non Playable

 * Dr. Eggman

Badniks

 * Bubbles
 * Buzzer
 * Chopper
 * Motobug
 * Newtron
 * Batbot
 * Burrobot
 * Jaws
 * Orbinaut
 * Shellcracker
 * Slicer
 * Spiker
 * Crawl
 * Asteron
 * Spikes (Sonic 4)
 * Fullboar
 * Steelion
 * Scarabesque
 * Sandworm
 * Chop Chop
 * Snowy
 * Zoomer
 * Mantis
 * Balkiry
 * Turtloid
 * Clucker

Bosses

 * Eggmobile (wrecking ball)
 * Eggmobile (Sonic 4)
 * Catcher Eggman
 * Flying Eggman
 * Death Egg Robot
 * Egg Serpentleaf
 * Metal Sonic
 * Egg Scrap Mech
 * Metal Sonic (airship)
 * Dr. Eggman & Metal Sonic
 * Metal Sonic (race)
 * Egg Heart

Zones

 * Splash Hill Zone
 * Casino Street Zone
 * Lost Labyrinth Zone
 * Mad Gear Zone
 * E.G.G. Station Zone
 * Sylvania Castle Zone
 * White Park Zone
 * Oil Desert Zone
 * Sky Fortress Zone
 * Death Egg Mk.II Zone

Key Items

 * Chaos Emeralds
 * Rings
 * Item boxes

Item Boxes

 * Main article: Item box
 * Super Rings (Holds ten rings)
 * 1-UP (Extra Life)
 * Power Sneakers (Makes you run faster for a limited time)
 * Invulnerability (Makes you invincible for a limited time)
 * Shield (Protects you from a Single hit)
 * Golden Monitor with the I love Tails Achivement Icon

Episode I
Special Stages in Sonic the Hedgehog 4: Episode I play akin to ones in the first game, where Sonic must navigate a maze to reach the Chaos Emerald, collecting rings and avoiding the exit blocks. This time, the rotation is controlled by the player instead of automatically. Controllers with motion control support can use either a traditional control method or by tilting the controller to control the rotation.

Two significant differences between these stages and the original ones are the inclusion of ring gates and a time limit. Ring gates are barriers that prevent the player from crossing into the next area of the stage, but can be passed once the appropriate number of rings, shown on the gate, have been collected. A time limit also kicks in at the start of each stage and boots the player out if they haven't collected the Emerald in the time frame. The starting amount varies by level, but can be extended in five, ten or fifteen second increments by collecting orbs around the stage.

Once a Special Stage has been completed, it can be replayed on the level select stage in either Score or Time Attack modes, with a 1-Up replacing the Emerald.

Episode II
Special Stage s in Sonic the Hedgehog 4: Episode II Play akin to the ones in Sonic 2's half pipe Special Stage .Like in Sonic 2 Sonic and Tails must collect rings to get the Chaos Emerald.Unlike Sonic 2 the player can boost to go faster and it has a time limit.Getting to the Special Stages is the same way as Episode I.