I can't tell how was awesome when i noticed that i upgrade something, the money required to the next point at that upgrade is reduced by the same amount, unlike many others upgrade's games. (:
Simple game: Buy a uzi and max it's upgrades. Then, buy the Ak-47 and max it's upgrades(keep using the uzi until you do that). To make bigger combos, kill the strogers units first.
For who is having lag's issues using chrome: put "chrome://plugins/" in the adress bar and press enter. Deactivate the plugin Shockwave Flash 11.3 r31 (probably the first one). Restart the chrome and have fun.
Nice game, but there's 2 things missing: 1. A map where we could see the enemys 2. A speed control system, so we would be able to accompany them and get them together
Everytime you change weapons(or press the hotkey to the same weapon that you are using) the acurracy reloads and you can aim better and shoot faster. + if that was helpfull.
 "Zomballoons!"){kind=icon}
 "Age Of War 2"){kind=icon}
 "Jacksmith"){kind=icon}
 "Infectonator 2"){kind=icon}
 "Angry Bees"){kind=icon}
 "Dungeon Rampage"){kind=icon}
 "Castaway"){kind=icon}
 "New Star Soccer"){kind=icon}
 "Effing Worms 2"){kind=icon}
 "Death Call"){kind=icon}
 "Elona Shooter"){kind=icon}
 "Tech&Magic"){kind=icon}
 "Defender's Quest (lengthy!) Demo"){kind=icon}
 "Kingdom Rush"){kind=icon}