I don't know if i somehow bugged it when i had to pause the game, or if it was like that since the beginning and i didn't notice at first: I've launched the game, checked out the settings and made it 1440p fullscreen borderless, then started the game, and after a bit had to pause. Since i was playing the HTML verison, the first tap on ESC took it out of the full screen mode, and when restarted the game I've noticed that where the shots were being aimed was at the top of the crosshair, instead of the middle of it.
The game is fun, but doesn't give you much of a chance to get surrounded, so if you line them up you can pretty much not waste a single bullet, kill them, and get enough time to reload.
The overall design including the menu is very nice, and the sound effects and music match it really well.
Fun game! Cheers ;)