Changeables, also known as McRobots, by McDonald's, used a then-popular "Transforming Robots" concept with their own happy meal creation. The robots could transform into items, mostly food, from the company.
There were three series:
1987
Featured six food items that transformed into unnamed robots.
1989
Included re-colors of two Series 1 robots, Big Mac and Large Fries, and six new molds. Series 2 also gave the robots names.
1990
Had four molds from Series 2 and three from Series 1 but changed into dinosaurs instead of robots. It also had one new mold, the Happy Meal box.