-Chicken Detects bullets and moves just enough to move. Repetition gun counts how many times the enemy has changed direction in a certain amount of time. If they are repetative, he quits using circular targeting and starts with basic aiming for the bots that pass over the same point multiple times in a match. --New versions(5.0 and newer) have a parametric gun that I made. It works by detecting movement per tick and using "timeslope" equations (y=tm) to predict positions. -Capriite Opposite Selective Random Movement (OSRM) Works well against pattern matchers.
I've made various other's that beat both of these pretty easily since I wrote that, but those two were still the first bots that I really got into and really made my own.