on the energy bar topic, it is just a hassle, because people want o pllay a game for a long time, not have to wait 2-3 hoursor what ever to get more energy
a suggestion for a new type of level: levels where you have to destroy aircraft bobbing a village. of course, you would need a vehicle designed for this, a random generic tank wouldn't work.
 "UPGRADE COMPLETE!")
 "Madness Next-Gen 3")
 "The Gun Game 2"){kind=icon}
 "Cargo Bridge 2")
 "Spartacus: Vengeance")
 "Potty Racers 2")
 "Endless War 5")
 "Filipe Sheepwolf Mixer 2")
 "Medical School")
 "Earn to Die")
 "The Last Stand: Union City"){kind=icon}
 "Epic Battle Fantasy 4")
 "Elemental Balance")
 "madness armoury (should work:D)")
 "Just Trolling"){kind=icon}
Now that's some math that I can trust.