Tanks 2019

This is my first game on Greenfoot, here's what to do: yellow, green circles and through-zombie mode for 1, 2, 3 players. Pink, blue and red circles show the confrontation between the players. Control for Player 1: arrows and button M-shot, control of Player 2: W,A, S , D + shot on Q, control of the game 3: mouse, if someone does not know the control, you can look at my game AntLife, there was used a similar mechanics. The letter K in the circle is a campaign, there are a couple of levels that the player needs to pass. Good luck! I will improve the game and, if necessary, answer questions that You will ask in the comments.