Just push the green flag. Push Green flag again to reset. Population count counts population, you can get rid of it. Number of each population symbolizes how much turtles of each population you want to start with. Number of groups is how much groups you want to start with. You can turn off sound by pressing the sound button (in lower right corner). The groups eat one another. Every time a turtle eats a turtle a new turtle appears. For example if a red turtle ate a blue turtle then a new red turtle will appear. This is a simulation of an interaction of different groups. When using 4 or more groups if a group touches another group there may not always be changes. This simulation does last forever and you will always get different results every time. Added population control, if a population disappears then more will appear. Similarly if there is too much of a population then some will die. Also because of a glitch I can't fix I added in reproduction, every once in a while the simulation will give a group an extra 5 turtles. I did everything, but Warfame has helped me a lot. Tell me other bugs and ways I could improve this. This is the best project I have made so far. I know compared to other projects it isn't much, but I think it's cool. .gge retsea na rof setirps noitalupop eht fo eno kcilc dna edisni eeS kcilC