A song by Juliet Lee helped me get the last achievement.
Not a bad concept. If you could try and expand the gameplay a bit, this could be a popular game.
This is a relatively easy game to get the Hard achievement. While I don't specialize in the Bejeweled style games...I got a rhythm going and died only a few times.
 "Improved Simple Game 2.0"){kind=icon}
 "Kick Out Bieber"){kind=icon}
 "Warlords: Heroes"){kind=icon}
 "Arcuz (Full Version)"){kind=icon}
 "Jacob and the Gyrocopter"){kind=icon}
 "Hit Bricks"){kind=icon}
 "Reactance"){kind=icon}
 "RPG Shooter: Starwish"){kind=icon}
 "Defend your Honor!"){kind=icon}
 "Boss Battle"){kind=icon}
 "Feudalism"){kind=icon}
 "Elements of Arkandia"){kind=icon}
 "Dungeon Crawl RPG"){kind=icon}
 "The Linear RPG"){kind=icon}
 "Infinite Tower RPG"){kind=icon}
 "Goblins Heart"){kind=icon}
 "Kakuro"){kind=icon}