A port of Spacewar!, an early video game developed at the Massachusetts Institute of Technology (MIT) in 1962, is hidden in Way of the Warrior and can be activated by pressing a complex series of buttons at the character selection screen in Tournament or Versus mode. Two players should each take a joystick and go to the character selection screen in the aforementioned modes. Player 2 should pick a character and hold Down-Right, A, B, C, and Start. While player 2 is holding these buttons down, player 1 must hold Up-Left, Left Shift, and Right Shift. While both players have the correct buttons held down, player 1 should press Start. When Spacewar! launches, up to four players with four linked joypads can join the game by pressing Start. Naughty Dog co-founder Andy Gavin thought it would be a cool addition, because during Way of the Warrior's development, he was studying artificial intelligence as a graduate student at MIT, where the original Spacewar! game was developed.