---> Vampire Rats! Vampire Rats: Atari Basic Graphics mode 2 (20x12 text) Only Human versus Human Rats turn dark when low on blood Vampire Rats II: Turbo Basic XL 1.5 Graphics mode 1 (20x24 text) Human versus Human or Human versus Atari Rats are same color as random victims, until low on blood, then change hue The AI routines I made aren't the best, but I learned a great deal from doing them. Stanley 'Third Age' Hunt