Use the arrow keys to move the camera. Z and X to zoom in and out. Space to change particle attraction values. Change the Agent #, World Size, and Type #, then click the flag again so that the agents spawn in the correct amount, positions, and types.
I would recommend using TurboWarp or CodeTorch, since they run much faster: https://turbowarp.org/1282571657 https://codetorch.net/en/scratch/1282571657 TODO: - Add presets