Well, I lost all my save data (which wasn't much) just by hitting the X to exit the browser. So every time I do that, I will have to start over!? Suppose it is on idle while someone else hits the exits the browser. Now, I just have to be careful.
Finally beat the game! It may be hard but that's what I like about it. It really makes you think so you have to try different strategies. Of your stuck on a level here's what I do - use one plane as a lure and all the others use to tail that one.
 "Space is Key"){kind=icon}
 "I Am An Insane Rogue AI"){kind=icon}
 "Ragdoll Laser Dodge 2"){kind=icon}
 "Mutilate-a-doll"){kind=icon}
 "Anti-Idle: The Game"){kind=icon}
 "CellCraft"){kind=icon}
 "Effing Worms"){kind=icon}
 "Heir"){kind=icon}
 "Solipskier"){kind=icon}
 "Epic Coaster"){kind=icon}
 "Robot Dinosaurs That Shoot Beams When They Roar"){kind=icon}
 "Geosketch Two"){kind=icon}
 "Pirate Defense"){kind=icon}
 "Stick Hero 3"){kind=icon}
 "The Unfair Platformer"){kind=icon}
 "Pandemic 2"){kind=icon}
 "SteamBirds"){kind=icon}
 "Perfect Balance 2"){kind=icon}
 "Four Second Frenzy"){kind=icon}
 "Avoidster"){kind=icon}