Some of the songs are impossible to perfect on some keyboards, because the key combos are not recognized (they lock up the keyboards). They lock up the keyboard.
If there are going to be badges awarded, all spells really should be available on the Kongregate version. The virus spread spell really helps you meet the time challenges on each map.
I read "- Free to play 4ever!" and I knew it was immediately one of those pay to win games. At least don't make it a clone of every other browser based, pay based perks type of game. We all understand that developers want to get money off of their products, but this trend of "pay to win" mentality is rather sickening.
If you level up, and then quit to menu using the T button, then open up your game using auto save, it not only gives you the feat that you chose on level up, but you also get reset back to whatever exp you were at, so you can level up again. (and do the same thing over again)
 "The Breach"){kind=icon}
 "Larry And The Gnomes"){kind=icon}
 "Super Crazy Guitar Maniac Deluxe 2"){kind=icon}
 "Caesary"){kind=icon}
 "Seafight"){kind=icon}
 "Orbital Decay"){kind=icon}
 "Grid16"){kind=icon}
 "StormWinds 1.5"){kind=icon}
 "Necronator"){kind=icon}
 "Kingdoms at War: Conquest"){kind=icon}
 "Dragon's Call"){kind=icon}
 "Critter Forge"){kind=icon}
 "The Horde 2"){kind=icon}
 "The Final Death Wish"){kind=icon}
 "Rings"){kind=icon}
 "Pixel Legions"){kind=icon}
 "Viricide"){kind=icon}
 "Screw the Nut"){kind=icon}