A local toy store was having a sale and I managed to snag some mecha-dinosaur with light and sound attack features, and I thought that they were really nice to play with.
I was in the process of customizing a couple of them when the Robot Rebellion group project came up, and I thought that they were perfect for it.
I originally wanted to name the vehicles after the Transformers Dinobots, but decided to just name the drivers instead.