Sonic Reunleashed

Gameplay

 * No more nighttime levels.
 * Sonic can transform into the Werehog at will, which causes day to turn to night and change the level to a degree.
 * Werehog plays more like a hack and slash game, with enemies dropping Rings when killed by the Werehog as an incentive to use it.
 * Sun/Moon medals removed.
 * Shadow has his own campaign where he has a Black Arms form akin to the Werehog.

Sonic Unleashed + Shadow's Fury, known in Japan as Sonic World Adventure DX + Anger of Shadow (ソニックワールドアドベンチャーDX +怒りの影 Sonikku Wārudo Adobenchā DX + ikari no kage), is an enhanced remake of the 2008 game Sonic Unleashed released for the GhostDrive. Intended to make up for the sheer amount of potential Unleashed wasted, it changes the gameplay quite a bit while also retaining the good parts of it, and adds a new side story known as Shadow's Fury, revolving around Shadow the Hedgehog.

Sonic Unleashed
The remake of the original Sonic Unleashed game boasts updated graphics, music, and many other details and additions to improve the gameplay.

Gameplay Changes

 * The game as a whole uses the HD versions as a base, but some of the gameplay features and improvements of the non-HD versions, such as Action Chains and Medals not being mandatory collectables. However, by contrast, the Tornado Defense minigame has been removed alongside the requirement of collecting Skills and leveling up.
 * Separate nighttime levels no longer exist. Instead, Sonic is able to transform into the Werehog by the press of a button, which also shifts the level to nighttime. At night, the level may differ in layout, offering potential shortcuts. Switching between the forms incurs a five-second cooldown however.
 * As a result, Sonic's Werehog form now plays much differently, being more akin to a character action game such as Devil May Cry or Bayonetta. As a result, Sonic gains Ranks whenever he uses moves akin to the ranks given out when finishing levels, and these are used to fill the Unleashed Bar. When it's full, Sonic can go into Unleashed Mode and gain heightened attack speed and power.
 * Enemies defeated in Werehog form drop one ring each, to compensate for the Werehog form being both slower and more vulnerable in combat.
 * Due to this gameplay shift, levels have been restructured considerably, with most overhauled or even removed in favor of replacements.
 * Sonic's overall gameplay is now more akin to that of Sonic Generations, taking several refinements from it.
 * The life system has been removed, much like in Sonic Forces.
 * There are no longer any 2D sections, thus the game is solely in 3D.

Story Changes

 * Cubot from Sonic Colors now appears alongside Orbot,