One thing I like about a lot of nerdook's games are that they have user-created armies that can be played against, or characters you can import. I also adore the art style. Keep it up!
I think a bow ( as in bow and arrow) would be a good addition, being able to either trigger to fire, or joint it to the background and pull the string back.
I really like the direction they've gone. It is slightly easier, so you don't get frustrated so easily. I also like how the creeper makers allow you to take your time.
 "My Pet Protector"){kind=icon}
 "AdVenture Capitalist"){kind=icon}
 "IntoSpace!"){kind=icon}
 "God's Assassin"){kind=icon}
 "Demolition City"){kind=icon}
 "Once Upon A Life"){kind=icon}
 "Orbital Onslaught"){kind=icon}
 "Bunny Invasion 2"){kind=icon}
 "Feudalism III"){kind=icon}
 "Mutilate-a-Doll 2"){kind=icon}
 "The Necronomicon"){kind=icon}
 "Creeper World 2: Academy"){kind=icon}
 "Caribbean Admiral"){kind=icon}
 "Strike Force Heroes 2"){kind=icon}
 "Super Adventure Pals"){kind=icon}