I like the idea, but I have some issues: There is no sound or music in the game, and it would be, so much better with some. The saw blades can sometimes spawn on players or get stuck on buildings. And the z-sorting of sprites doesn't always work: eg. you can place a barrel behind a building, and you can't even see the progress bar. I have some suggestions on how to fix those issues: the barrel progress bar could be displayed on top of everything, and the player on spawn could have some short immunity time to escape the saw blades, but even with all those issues, the game is good!