This was a remix of bumper turtles by project guts. Very little of the original code is left behind but some of it is.
In this simulation, there are 3 colors that either kill or multiply depending on who they collide with. The prey has a ten percent chance of escaping their hunter.
Blue -> Yellow -> Red -> Blue
and so on.
If a turtle hits another turtle that is the same color as itself, it has a 50% chance to create 1 new turtle that is the same color as the parents.
Once there are 1000 total turtles, the plane resets and you can see who survived by looking at the line graph.