...
... one solid little game. The only problem I found was with the balance, on normal (and hard) the game was too tough, I found it dificult to pass level 20. On the other hand, on easy the game becomes trivial, patheticly easy in fact, requiring very little hability to "win". Sort that problem out and you'll have a winner, because the gameplay is pretty addictive, the graphics are adequate, you make good use of sound effects and music (though the music inevitably becomes repetitive, nice touch allowing it to be turned off)... top notch work!