The crafty alien had figured out how he planned to get the pieces into space. He praised himself from his genius intellect as he set one piece of the giant canon hidden behind some rubbish in an alleyway behind a bakery.
The idea was simple. Several key points in the city would become a puzzle piece drop off point. Then after all the pieces of the puzzle were laid out for him he would take the voot with the center piece that could magnetically summon all the pieces together and it would reassemble itself in orbit in the perfect position to take out the city.
Once he proved the power of advanced Irken tech the humans would have no choice but to bow!
The irkens Pak opened, since no one was round to hear, and a metallic limb extended over is head. "GIR! The first piece of the orbital laser cannon is in place. I need You to lock the coordinates into the center piece mainframe so it will know exactly where to pull the piece from.. Do you understand?" The robot giggled on the other end. " Teeeheeehe it looks like a banana!" Zim sighed.. " FOCUS GIR!" he snapped. Coaxing the defective robot to lock in the coordinates after telling him to push the banana like it was a monkey.
Looking up left then right.. Zim assumed he was alone.. and no one had seen or heard any of that. The metallic limb slipped back into his PAK and the alien slipped out of the alleyway whistling innocently with his hands in is pockets.