This game is about besting your opponent! Click on the start button in the title screen, and then choose your map in the next by clicking on one of the icons. Player 1 is the character on the left, which uses wad to move and left shift to shoot. Player 2 is on the right, which uses the arrow keys to move, and right shift to shoot. Health bars for each player are at the top of the screen. If a player's health is reduced to zero, the other player wins, and then you can go back to the title screen and play again. Enjoy!