Very cool and original concept, and it's very impressive that you wrote so much dialog to responde to various items that are thrown.
On the web build it was almost impossible for me to throw items. On windows it was much better, but still could be polished some - items felt either too heavy or too light, and I thrown items above by mistake a few times - it's seem like items you're not holding should be very heavy to avoid being thrown around by mistake, but if I sort of fling an item it should be thrown like a breeze
I beat the first scenario and it was cool. I'm not sure if the story is random - I can totally see this one being developed to a complete RPG gameplay system (maybe allow to throw several items? time limit? various directions doing different things?)