thx for your feedback! Indeed there is a few bugs, I made this game quickly :p
I want to continue and make this a complete game, I will try to fix all this.
What if I put the shot on the triggers? Would that leave your thumbs free to direct the cameras?
About the menu button: I would like the player to be totally immersed in the game, with no escape. From the moment he starts the game, he must go to the final boss :p A pause menu would be a bit of "cheating".