This game was excellent. By all rights the game should be horrible, however everything comes together in a way that is an absolute blast to play.
Before I continue I would like to note this game has a lot of flashing lights and colors. If you have epilepsy or are prone to epileptic attacks, play this game with caution.
The first thing that struck me was how good the gunplay is. The guns sway with movement, have fairly accurate recoil, and for the most part are very satisfying to use.
The game has memes that flash across the screen everytime an enemy is killed. Rather than being annoying, the memes feel more like background noise, hardly noticed yet greatly adding to the chaos. Sadly most of the memes are outdated, though that is to be expected of a game made in 2014.
There is music that plays throughout the game. It is very techno/dubstep like. I am normally not a fan of that kind of music, but in this game it works so well, making me feel pumped up for whatever is next. I believe there are only two soundtracks, yet they don't get old after a while. This is likely helped by the game's short length.
There are a couple of slow-motion sections in the game, much like Call of Duty's "breach and clear" moments. Slow-motion is also activated for a few brief seconds when an explosive "barrel" is shot.
The controls are alright, but are fairly basic.
The game has very sporadic controller support. Sometimes a controller works, and other times it doesn't. From what I've seen attempting to use a Playstation 4 or Xbox One controller is practically guaranteed to not work.
All-in-all the game is explosive, fast-paced fun. 9/10.