I am not a murderer V2

See the rules to know the controls.

ChangeLog from v1:

 - Fixed dissapearing npc's.
 - Fixed bullets origin position.
 - Fixed sound and added more sounds to the rest of the game.
 - Better aesthetics overall (outside the playing part).
 - Improved story part.
 - Added a last stage where you can move the player within a range.
- Added an "arcade" version, where the goal is to see how much time can you endure.