V1.2 adds in two new options: random_chance and random_number. Random_chance, if set to true, will allow the enemies to target randomly(the normal way) sometimes. MOST attacks will still be aimed at the highest threat, but some can be random now. Random_number is a number that you can adjust to change the rate of random attacks. The higher you set this number, the lower the chances of a random attack will be.
I am still considering which options to add, as I have had a lot of suggestions for future versions.
Edit:
V1.3 adds an option to represent threat as user defined icons rather than a gauge