Where is it going?
I did not enjoy this game, mostly because there seemed to be so little point in it. I appreciated that the idea was a little original, but not much beside that. The weirdest thing was that the trees didn't even seem to be chopped down when I beat a level. Anyway, the graphics were not that impressive either. There didn't seem to be any shadings, only solid colors. Next time, you may want to make everything move more smoothly.
At first I thought it was one of those bouncing games where you tried to make the chainsaw go to the other side of the screen fast. I think it would have worked better if you had done that. You should work on your lines and maybe make it a bit slower. I could not keep up with where the chainsaw was going or what it was doing. At least the drawing lines part was kind of nice.