To play QB Legend, use the mouse or arrow keys to steer your quarterback and pass the ball to receivers running along yellow lines on a PC; on mobile, tap and drag for movement and passing. Press the spacebar or double-click to spin and dodge defenders (once per play). Each game consists of four one-minute quarters, with four downs to gain 20 yards or lose possession. Score a touchdown by catching or running into the end zone for 7 points. Run out of bounds to stop the clock for extra time. Access the menu to adjust strategies or track progress. The game supports fullscreen mode and is playable on browsers or mobile devices via the CrazyGames app. Strategize passes and dodges to lead your team to victory.