It will be a triple changer. Monster to robot to spaceship.
It will have diecast parts in key places for balance and such, like in the nosecone of the spaceship. Said nosecone will have a sharp point, of course.
The monster and robot mode will have battleblades action. Real blades made out of stainless steel, sharpened like Exacto knifes. It will be able to launch a very short and sharp die-cast missile with the force of a real crossbow. The monster's teeths will be pointy, sharp, and made out of stainless steel. Finally, even if it can be transformed without breaking, if dropped from only 3 foot high, it explode in thousands of tiny and very sharp pieces like a glass grenade.