I love the the idea of the whole gravity pulling arrows in. But the part of the game I love the most is the style. I'm a sucker for limited retro styles. Not just pixel art but like gameboy themed or N64 like. Though the scaling on the web browser should be fixed and adding some ongoing sound in the background.
Now, I played this with my pal Sandii, this is what she said.
I LOVE the art. I'm a bit sad that the title screen is zoomed in when it's not in fullscreen, but otherwise i didn't really see any issues. Alas I couldn't get past level 10, but my buddy couldn't get past 6 so I count that as a win for me! I think it lacks "depth" if you catch my drift, I think you should add a background that isn't too distracting. I think that this could be more interesting if you had taken the bow and had a power meter (like for shooting the arrow super far or barley letting it go). But that idea isn't too original, so this still stands out as a wonderfully original and amazing idea. Great Job!