Sonic CD is free to download on the App store this week

If you're craving some good ol' blue hedgehog speedrunning this afternoon and have an Apple device on hand you'll be happy to know that the classic Sonic CD is free to download via the App store this week.

The game was originally released back in 1993 on Mega-CD and PC and it plays much like the original games on Megadrive. Since then it's been ported over to a plethora of formats and now we'll be able to enjoy it for free, on the go. Which Sonic game would you like to get for free?