Surprising no one... It's bad. It's a Whack-A-Mole that despite how inheritably simple it's supposed to be, the game fails to convey any of the basic information about itself. I've whacked the people as they come out of the doors, untill my number of "kicks" changed to green, which I assumed means that I cleared the stage. I unlocked the second of the 4 people, so of course, I started to whack on her, in the same way as I did before, but this time nothing happened. I tried once more, now focusing more on collecting keys that randomly fall from the ceiling. After collecting some of them, I gained the access to some weapons that changed absolutely nothing, and an achievement pop-out told me that now I just unlocked level 2, which I thought I was already in. Turns out, just like the useless weapons, the people I unlocked are just a visual change (which is a pretty lazy design. The animations of different people could have been used to have some visual flavor in the levels, instead of having the same one coming out of every single door,) and to unlock the actual levels, you just have to replay the previous ones an artificial number of times. It shouldn't be that hard for the game to somehow tell the player what's going on and what is he even doing. There isn't much more to say about this game (which is why I elaborated so much on the previous point,) it's ugly, the lack of settings is annoying, it's idea of challenge is decreasing your time-frame of hitting enemies to split seconds. I don't know who would consider buying it, but in any case, just don't.