Amazon is giving away Sonic 4 for free. Grab it soon and it's yours to keep forever.
Get it here: http://amzn.to/1muGrhE
Enjoy! Btw, they had Sonic CD up for free not too long ago, twice. Check back every once in a while, and they'll prob have another sonic game up.
Only on Kindle? I'd think about it if it was for console or PC but tablets are terrible for gaming.
Darn, guess it's over but whatever, I could still play the pc version.