as everybody has said the game has cool art , the couple of frames of animation you added to everything made it feel a lot more alive and enjoyable to look at.
The game itself is also fun with you having to miss civilians on purpose (though i'll admit on hard it is a tad overkill) and helicopters coming in as a distraction if you overdo it
Thank you for adding the boss rush, it makes it easier to see the entire game, my favorite parts was the godzilla segment.