Reverse. There are only six Kreons in this run. The ones I wanted are the Gorn, the Klingon, and Captain Nero. I'll leave it up to you to figure out the reasons why.
Lieutenant Sprog. I don't really remember seeing an alien like this in the first reboot film. This one has five pieces so that gives us a Price per Piece of $0.60 (normal), $0.20 (sale).
Can you build a frame, or frames, right away? No. (-5)
Is it below, at, or above the golden ratio? Above. (-10)
If you can't build a frame right away, does it have parts you should be able to put into use right away? You should be able to use the Phaser or Batleth as frame weapons. Still, that's stretching it. (+5)
Does it have more than a handful of immediately useful parts? No. (-5)
Score: -15 (C). I can't really recommend these, unless you've got the collecting bug -- like I have. If you get them at the same price I did they may be a way to get Phasers and Batleths without having to resort to Brickarms, Brickforge, etc.