The way you get bounced around from poor controls and cannon-blast knock back, this should have just been a pinball game. I hate going against the popular vote, especially when a game has 90% positive reviews out over over 1,000 reviews like this one does, but I am staying with my initial, unflinching diagnosis of this game. It is unfortunate and I feel stupid going against so many positive reviews, but user reviews on Steam do not always signify a good game. See: DayZ. If not for the two problems that cripple this game, it would otherwise be a masterpiece. I recently reviewed Teleglitch and said it was by far one of the hardest games ever made. It is infinitely easier than this game. This game is the hardest game in the history of gaming, in my opinion, and for all of the wrong reasons. Without trying to be cute or funny I can say that fighting Mike Tyson in Punchout wearing a blindfold would be easier. I have played some legendarily hard games and beaten them, some with not as much effort as most people say they needed to beat them, but this game I just couldn't do anything because the controls are in my opinion so poorly done. Of course 90% of other reviews here disagree with me, so catch this game on sale and decide for yourself.
The first are the horribly over-responsive and loose controls. You fly around like a pinball in a pinball machine in levels designed with every pitfall and hazard imaginable covering about 99% of each level. Over responsive in that in air after a jump is way too responsive. If I press right or left, I go way too far in that direction. Loose in that when you stop running, your character does not stop or even slow down quickly, she keeps sliding a bit. These things are the very single reason I ever died in the game. I never, not even for a second, felt challenged as a gamer because i just could not do anything with the horribly loose controls. The other issue with the game are the fighting controls. I struggled to remember exactly what to do on each zombie fight even though it is so simple. Simple yet so unnecessarily contrived. Even on the third level when I was getting it down, it still felt incredibly awkward. And that is where I gave up in utter disgust at the controls, level 3. Level 1 told me on the end screen I had died 30+ times. Level 2 I died 40+ times. Level 3 it was endless deaths and that was because, in addition to the hyper/loose controls, they put ice on every floor and platform in the level. I tried dozens and dozens of times from each checkpoint, slipping, sliding, bouncing, and being knocked into spikes, more spikes, buzz saws, and more spikes. And that leads me to the second game killer.
The second thing in the game I could not do anything to guard against or improve: knock back. When you get hit, you bounce way away from your point of contact. You very, very seldom get lucky and get bounced to safely land. Nearly every single time you ever get hit, you are bounced right into another hit or into death. Enemies knock you into other enemies and death pits. Non-lethal spikes knock you into other enemies and death pits. And one of the worst enemies I have ever seen in a game, the flying creatures in this game are unbearable.
So to cut it short, I can say that since you are a pinball in this game, this should have just been a table add-on for Pinball FX.