Hello,
thank you for taking the time to play and rate my game and also for giving me some tips to improve it.
It is true the controls are a bit unusual. I do not know why, but for me they were not that weird when I was programming the game, but the day after the submission, a friend of mine tried the game and he told be about this. I have already changed them to make them more comfortable to the player (as you said WASD for walking up, left, down and right in the screen coordinate system), but I cannot update the game until the vote time of the Jam ends. So I will do it afterwards.
Im not quite sure yet, which system I could use to limit the amount of shooting. I will think about your advice.
Again, thank you for your time and your feedback.