Once you start understanding some of the ammo box pictures, it starts getting less frustrating. But it always feels a little tedious, especially since you still kind of have to mash through whatever four keys you find to see which ones are up/down/left/right. And because of that, aiming becomes very difficult and actually fighting things is kind of a trial.
Also I spawned between a bush and tree and couldn't move at all one time and had to restart.