What a cool puzzle game! I'm normally skeptical about 'per step' mechanics in puzzle games due to its trial-and-error nature. While this game isn't completely free of this, you managed to think of cool setups using this mechanic. I especially liked later levels, centered around making a specific formation of the snake to pass 'Count 2' lasers.
I think it might work better if some lasers/bombs were manually detonated (by pressing space or something), to remove moving around just for the right number. Still, really clever puzzle design!