Very nice game. Very mellow and relaxing feel to it. I don't know if it's something I was doing wrong though, but I could only rotate the pieces 90 degrees, instead of all the way around, which made it fitting in harder. Also, maybe you could have the blocks disappear in groups of four, instead of just lines of four? Other than that, amazing game, and keep up the great work!
Wow! Thanks for all the comments guys! Somethings I'm taking into consideration while working on the next version, and bugs I'm working out:
-Mute button doesn't stay muted when you go back to the main menu.
-Lives in endurance is very buggy, sometimes doesn't kill you, sometimes overkills you.
-I'll be adding a warning flasher to the main circle to indicate a color change.
-Smoother operating movement, slower speed-up, etc.
-More achievements, powerups, or something to make this less generic, and more unique!
Thanks for the plays, and don't forget to tell others about i!
 "Blue Moon"){kind=icon}
 "Circle Master"){kind=icon}