Great game, great story. I felt bad on the last level also. I would recommend you fix one thing though, put the enemies on a layer above the bits. It's incredibly annoying when the small viruses are hidden under all of the bits that are coming at you.
 "Async Racing"){kind=icon}
 "Ether War"){kind=icon}
 "Scope: First Blood"){kind=icon}
 "Epic Coaster"){kind=icon}
 "Particles"){kind=icon}
 "Looming"){kind=icon}
 "Heir"){kind=icon}
 "Five Minutes to Kill (Yourself)"){kind=icon}
 "DodgeSquare"){kind=icon}
 "Solipskier"){kind=icon}
 "filler"){kind=icon}
 "Snail"){kind=icon}
 "Viricide"){kind=icon}
 "Hash"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}