UPDATE: We’ve heard that the free version doesn’t come with achievements, only the paid version does.
Own a Nokia Lumia Windows Phone 7 & 8 and love Sonic? Well, the recent upgrade of the Mega CD classic Sonic CD is now free to download. Yes, it is F R E E FREE of charge. New features include 16:9 widescreen, achievements, leaderboards and both the US and Japanese soundtracks.
You can download the game from your Nokia Lumia phone here.