This is an excellent little fps with super stylised graphics (all white environments black objects and red enemies and bullets) with a gimmick that time only moves when you move. So stay still and everything is basically frozen in time (more or less it's probably more accurate to say that time is moving really slowly so fast things like bullets and cars do move perceptively while you are still just at a very slow speed).
So you can essentially dodge bullets just by judging where they are going to come from and moving out of their way. You can then fire back but you have to judge the path of the bullet right to hit your enemy since the bullet will take time to arrive rather than just being effectively instantaneous like a normal shooter. Reloading is also real time so it can take a long time for the next round to be chambered while you are dodging about in accelerated time.
It adds to this mix melee attacks that can stun your enemies and make them drop their weapons and the ability to throw weapons and other objects for the same effect.
It's almost like a puzzle game in some respects and the game sort of becomes about chaining together moves. You see the enemies coming you judge the angles dodge their incoming fire to get close to them stun one with a punch grab his gun out of the air blast him in the face swing round throw the gun at enemy 2 take his gun shoot him throw the gun at enemy 3 dodge enemy 4's bullet grab a sword cut them down and so on. If you get shot or hit at any point it resets and you have to try again. The game slowly adds complexity like more difficult weapons to dodge (shotguns with wide cones of fire and machine guns with rapid firing multiple projectiles) and more melee weapons (the bat the pipe the awesome sword you can cut people with or throw and kill with)
Once you defeat the enemies it then plays back your actions in real time so it looks like some awesome action film sequence of dodging weaving carnage.
It's a refreshing fairly innovative fps game with some nice style to it steam had it on offer on launch day but it was a in the 25 dollar range even at full price.