plasma arena

so... Having started playing this game about 7 minutes ago, I was hoping to see a little more elaboration... firstly, there is no sound in single-player mode (the problem may be in me), also in single-player mode, opponents appear much earlier than you and have time to shoot. secondly, it is not clear how to invite to the game or join the game. I also read that the ability to change gravity has been added. hence the question - how? it would be nice to explain such things at least on the game page. thirdly, the character shoots not quite in the crosshair, shooting to the right, then to the left. otherwise, everything is wonderful. I can only give already mundane recommendations in the form of "I want more guns and cards" and "make a jump on the space bar" (purely from me). good luck to you!