Good but could be better
This is a good flash, as shows by its score but there is room for improvement. You have got talent for drawing but you still need a little work, Snake and the guard looked like people and moved pretty well. However the colours seemed a little off, snake looked a little to light for example. You may also want to learn how to do some good shading; it can really improve the graphics of your flash movie. The backgrounds were a little weak I felt, I know metal gear backgrounds are dull but you could still add a little something here. Maybe add in jokes e.g. posters? But over all it was well drawn I felt.
This was a short film, and there is nothing wrong with that but you might want to think about making them longer later. Very easy is just that and it is possible to show a lot more then just the low AI in the game. Thinks of how the game could be any easier and then add in scenes, maybe the boss battle or the fact the game almost does its self for you?
You used the music from the game and it fitted in well, there were no flaws in it and it was well cut. Good job. The voice acting was passable at best, the mike used was a little off but mostly the voice just did not fit. You should look for some decent voice actors; there are quite a few around newgrounds who are always looking for work. Find voice actors who fit the work you are doing and then try them out, you will be surprised how much it can affect your score.
The joke is a good one, easy mode is too easy. But I don’t know how many times I have seen a joke about blind and deaf guards who are as dumb as driveway gravel. You really should expand on this; make it a short movie instead of just a quick sketch. There are lots more jokes you could use, and I am sure you could pull them off. Think about it for your next movie.
Overall this is a good film, worthy of a good score and shows the potential of a great flash artist, if you work hard and keep at it. Nice work.