we need to be able to set our towers to target clumps of units, or stronger/weaker units, instead of just having our towers hit the first thing that comes their way
a way to see the total damage the tower has dealt, to see if its working or not, would be really handy, along with a speed button and a few changes to the strength of certain towers. i think that instead of unlocking certain upgrades for towers as you go, it should be something to spend skillpoints on, just to deepen the strategy
a good game, but i think there should be a shop of some sort, where you can buy accessories for your duck with coins collected in training, and also, when you complete the game, there should be a sort of freeplay mode, where you can get unlimited levels for your duck, and see how ridiculously fast it goes
 "Super Villainy"){kind=icon}
 "Bullet Heaven"){kind=icon}
 "New Star Soccer"){kind=icon}
 "Kingdom Rush"){kind=icon}
 "New York Shark"){kind=icon}
 "Do You Know Flash Games?"){kind=icon}
 "Necronator"){kind=icon}
 "Bot Racing"){kind=icon}
 "Hedgehog Launch 2"){kind=icon}
 "Desert Moon"){kind=icon}
 "Snow Line"){kind=icon}
 "Neon Race"){kind=icon}
 "Uphill Rush 3"){kind=icon}
 "Lost and found"){kind=icon}
 "Upgrade Complete 2"){kind=icon}
 "DuckLife3: Evolution"){kind=icon}
 "Music Catch 2"){kind=icon}