Three. You might want to notice the letters developing the Zombies. In stage 1 an individual letter will include a Zombie, but the amount of letters will improve at better ranges respectively. You have to hit the letters to eliminate the zombie. Zombie Typing Game is a fun and free https://zombie-typing-free-downlo70357.designertoblog.com/70317048/a-secret-weapon-for-zombie-typing-browser-version