A.R.E.S. is what you get when you mix Megaman, 80's cartoons, and the old DoS game "Abuse", and put them all in a 2.5D blender.
A brief review for a brief game, A.R.E.S. can typically be finished in one sitting, which of course is the point. Weapon purchases and upgrades transfer over with every new game that is started, and there are multiple endings depending on the difficulty one chooses, throwing in a little bit of bullet hell style progression into the mix as well. And for you OCD types, there's also some collection elements, so it's fun to go back and suss out secrets from every corner you can find.
If I had one complaint about this game, it's that you absolutely should be playing with a controller. I realize that isn't much to ask in this day and age, but for those stuck on a mouse and keyboard, unfortunately the programming of the game will only allow you to press two keys at once, so for some of those tricker platforming sections, it gets a little extra hard to navigate properly.
That aside, the game runs smoothly, looks nice, has a bit of a cartoonish feel to the plot, and is mostly just an excuse to run around and cause robots to explode. And at the end of the day, isn't that all we all really want?