Rats are incredibly smart and are a strong competition for dog intelligence. They can learn tricks and agility and really enjoy the process of learning and praise. There are many different agility kits out there and some people 3D print their own. If you are interested in teaching your rat agility then check out the links below for more info and consider looking up various kits for supplies online. I have linked the one above but there are many more. Another idea is to use some of the entertainment toys made for smaller birds because they can be very similar and sometimes a cheaper option as well!