Some of the best things it has is the button on the back of Optimus Prime's head that makes his mouth move up and down just like in the cartoon.
I kept making him Say, "Megatron must be stopped, no matter the cost"
He also comes with Megatron in gun form that Optimus can hold in his hand with a removable barrel, stock and scope.
And the Matrix of leadership inside his chest plate glows

.
It's detailed all the way down his leg to where the vent slats lift up and down.
This is the best fucking Transformer toy in the universe. Go buy it now.