Phew! I managed to survive on the third try!
The story is really fun, I love the idea that The Big Bad Wolf is part of an entire pack!
The defensive items are inventive, I especially liked sending wolves down into pits, very cartoon-y!
The first time through I understood the goal but not how to accomplish it. The second time I thought maybe I could 'cheese' the system by throwing down bear traps on every wolf I saw, more like an action game than a tower defense, but I got overwhelmed. I think bear traps only work on the smaller wolves every time? Or do they have randomized damage? In any case, sometimes they were defeated and other times not, so I switched to pits which always seemed to work; in that strategy I ran out of money, plus it was difficult to place more pits on the wolves piling up.
At one point a lone wolf got stuck in the trees and I thought perhaps I could save up for the big tower, but the next wave still triggered and overwhelmed me first. Finally I went with a mixture but mostly used the ambushes and ballista when I could buy them, this led to victory! I was never able to see that final tower, though.
This might not be true for everyone, but I could have used more clarity on the rate that money increases, and the health of the house being defended.