Cogs

Cogs are a path object which redirects robots when those walk over it, similar to arrows. Unlike those, however, cogs will change a robot's direction relative to its current one. A cog turning clockwise is dark and will make a robot turn 90° right, whereas a cog turning counter-clockwise is light and will make robots turn 90° left.

In the final level Kingdom Harms, there also exist switchable cogs, which change their turning direction on being toggled with a lever.