Cassette Beasts was the last game I beat! I'm just doing post game things now and even learned some new things about a few characters. This game was definitely worth the $30 I paid for and more!
Sonic CD was the last game I've beaten, I got all the time stones as well so I got the good ending. I'm starting to really like the Sonic CD special stages more and dare I say it I think I like them better than Blue Spheres now!