The game was nice, the player was very simple and his animation was funnily weird. The camera offests when you change directions but that can be easily fixed with a tutorial.
The game itself was a bit bland, the theme wasn't implemented other than in text, it would've been nice if at least the art changed with it (like the player having a facemask in march, or fire in the WW3 part or something, I'm not that great at art anyway so I can't judge), and audio would've certainly made it be a lot more alive, and you can get a lot of free sounds at the appropiately named page freesounds.org, but some need attribution.
Overall, it was nice!