Nice Downwell remake / demake. Your game is currently running at 30fps. You can change this to run at 60fps by changing _update to _update60. This will make your game play much smoother. Your physics might need adjusting though if they are tied to framerate.

hey i don't know if this is just luck, but if you go al the time in the left the spikes never get you so you only need to press down to go inside the blocks and pass