If you look at the shape of part A, you'll see that part D can be slid into it from only one direction.
UK Version
First, think about where part D must go.
If you look at the shape of part A, you'll see that part D can be slid into it from only one direction.
US Version
Look at the top edge of each part. Each one has a bit that sticks out. These bits will bump against each other if they are not put together correctly.
You need to figure out how to fit the pieces together so the jutting bits don't collide.
UK Version
Look at the top edge of each part. Each one has a bit that sticks out. These bits will bump against each other when the parts are incorrectly fitted together.
You need to work out how to fit the pieces together so that the jutting bits don't collide.
Part D can only be joined to the others from above.
US Version
Though part D can be rotated in various ways, it generally joins with part A in a way that should help you envision what space is left for parts B and C.
UK Version
Though part D can be rotated in various ways, the general way that it slots into part A should help you envision what space is left for parts B and C.
Parts A and B both have a protruding row that is four squares wide, so there is only one way these two parts can meet. They must face each other.
Solution
Incorrect
US Version
Too bad!
Try again. You must assemble your weapon!
UK Version
Too bad.
Try again. You must assemble your weapon!
Correct
Correct!
You fit the parts together as shown above. Now you can launch your attack!