Jun 24, 2014 The Sonic 2 HD project aims to recreate Sega's classic platformer, initially released in An alpha version of the game was released in spring 2012, but since then project leaders have been quiet on their full release plans. Mar 27, 2012 . Sonic 2 HD Alpha Release Now Available, Continues Development As . from a group of fans with a passion to give Sonic the Hedgehog Download Sonic 2 HD Alpha. SEGA's hedgehog has never looked so good. Sonic 2 HD is a high-definition remastering of the original Megadrive Sonic 2 carried. The Alpha release of Sonic 2 HD was finally released to the public on March 27th , 2012. The demo.