One player means you are playing against ai and I played it and it is impossible to beat the ai for one player you control your player by the mouse and you are on the left side of the screen and for the two player you are supposed to have two player's and player one is on the left side of the screen and the controls for player one w and s keys to go up and down and for player two is on the right side of the screen and player two uses the up and down arrow keys to go up and down and that's it hope you enjoy
