To fix: 7) Selling damaged structures/creatures should not give the same amount as one with full health. This also seems to keep the enemy from getting cash from killing your structure/creature- double bug.
After a certain point it becomes impossible to lose. Turrets are your friends and so are spiders. From your first base build a few turrets on each side. Build another base and turret it also. Keep doing this until you have the entire map turreted. You win....except the game seems to go on forever. I have it playing right now but I am not doing anything but raking in the cash. Issues to fix: 1) Moving screen causes bullets to move. 2) Slow down- it is slow. 3) Pathfinding needs some work. 4) Info on what the different creatures and structures do/have- the damage, shots per second, type of shot, hit points, etc. 5) Sometimes a new 'hive' is spawned and it doesn't have any money to create enemies. 6) Work on AI. I liked the game and I think it good but with some more work it could be great!
I'd like to play but the game really lags my browser when it gets past the intro movie (sends cpu to 50%). Submitted bug to Kong and it should get forwarded to designer.
@greasyrick: To use an unlocked reward, select it in rewards. In the game press the A button to use the reward. Some rewards are automatically used, some are one time use, some slowly recharge, and some have to be placed with A and then used by pressing A again. Have fun figuring them out. :)
 "Backyard Buzzing")
 "Button and Clip Event tutorial.")
 "Button-Mashing-Fun")
 "Straw Hat Samurai")
 "Orbs"){kind=icon}
 "The Magic Number")
 "Lemmings")
 "Interacto-Ball")
 "Chuck Norris")
 "Presidential Prize Fight")
 "Mr. Rubby (he is a super hero)")
 "Necklace DIY")
 "gladiator link2 - kian")
 "Cake Shop")
 "Ether War")
 "Chaos Faction"){kind=icon}
 "Seven Deadly Sins"){kind=icon}
 "Destroyer of Worlds")
 "Amorphous+")