It doesn't seem to be keeping my games from before so every time i go back I have to start again! Hours lost. :( It would be nice to see a fix to that.
ummm.. i have a comment.
an minor flaw/glitch/cheat.
at the end of every level you get money based on your remaining health. so if you spend a bit of money upgrading your health and then just play the first level again and again you can farm a crap ton of money for very little time.
BattleBot Endurance Champion Badge (medium – 15 points)
At least it's not a 5-hour marathon of Comedy Central filler! Complete all 12 levels of objective mode in Hover Bot Arena
* Level 12 completed in "objective" mode
 "Sands of the Coliseum"){kind=icon}
 "Gravitee Wars"){kind=icon}
 "ImmorTall"){kind=icon}
 "Body Ladder"){kind=icon}
 "Tangerine Panic!"){kind=icon}
 "Kongai"){kind=icon}
 "Hover Bot Arena"){kind=icon}
 "The Last Stand"){kind=icon}
 "Skydiver Mach II"){kind=icon}
 "GemCraft"){kind=icon}
 "Aliens Must Die : The Jupiter Wars"){kind=icon}
 "Hedgehog Launch"){kind=icon}
 "Nano War"){kind=icon}