I have to say I think this is definitely one of my favorite games on this site I've played so far. A solid 90 cows out of the herd of 100.
I think my favorite think about it is the menu. You create the menu to be a tutorial which is something I've never seen before and I think you executed it brilliantly.
I think the one think that could be better would be the length. I wish it was a little longer. However I know in the description it says this was for an assignment so it is understandable.
Great job. I look forward to playing your games in the future!