Don't really understand this...
Need proper tower placement, proper detection when a bullet hits an enemy, more than one level, and a fixed fire rate, as opposed to a tower that fires once it hits something or waits until the bullet has gone off the screen.
I can appreciate your efforts though.
Also, another problem in "You can drag them" is if you drag it upwards with your character on it his head ends up going through the roof, which seemed to cause the game to crash. Again, just something small to fix, as I doubt anyone else would do this. Still, 5/5, great game :).
Great game, 5/5. The only problem I found was in "You can drag them" where I accidentally dragged them out of the screen :p. Just that to fix, although I doubt anyone else would be silly enough to encounter that problem in the first place heheh.