Does the game autosave? If so, it doesn't for me...I was on level 22 then my internet disconnected, when I got back on it shows I only have level 1 unlocked. Even though the hard badge says 21 levels completed so far.
The Sun Eater
Dude! You just completed the The Sun Eater achievement in Ether Cannon and won the The Sun Eater badge and 30 points!
FINALLY THAT WAS HARD!!!