Very neat idea for the theme, making the elements that normally kill you not kill you was really interesting, I found it quite interesting that in exchange for the not killing you made it so that it slows you down, which means you get a lower score. I feel this one would benefit of having a more speed focus, making the player accelerate to a max speed while trying to avoid getting hit by the obstacles so that they reach the end fast as possible, while challenging player to have fast reaction times, but overall, very neat.
The SFX of the sawblade is a bit loud and scratchy, doesn't really feel good to hear it, the rest of the sounds are good, it's just the sawblade feels like someone scratching a blackboard.