Rotate - A/D
Place - Spacebar or LMB

These pesky alien punks are causin' trouble! Only one thing to do: LOCK EM AWAY!

Use A/D on the keyboard or your mouse scroll wheel to move these little creeps into the right silhouette and lock them up in their prison cubes! You get bonus points if you're fast and accurate with your placements!

Best of luck out there, cadet!