: Utilizes the "boost" gameplay introduced in Sonic Unleashed and Sonic Colors . These stages alternate between third-person 3D and 2D sections, featuring the Homing Attack , Sonic Boost , and Air Dash . Narrative Summary

: Released for PlayStation 3, Xbox 360, PC (ported by Devil's Details), and a unique version for Nintendo 3DS developed by Dimps.

is a celebrated platform video game released by Sega in late 2011 to commemorate the 20th anniversary of the Sonic the Hedgehog franchise . Developed by Sonic Team, it serves as a "greatest hits" compilation, reimagining iconic levels from the series' history in both classic 2D and modern 3D perspectives. Core Gameplay Mechanics