Press Z to swipe with a claw Press C to shoot a fireball toward the current mouse position. Press spacebar to reset the game. 2 Heroes spawn a second and automatically move toward the nearest 'subroom' location. They'll damage the boss if they stay in their subroom for too long.
Add game over. When boss runs out of health, then stop spawning heroes, play a game over musical sting, and show "Game Over" at the top of the screen.
