I. Basics --> The Pteras is a pretty easy zoid to build. It took me about 10-15 minutes to build it but it was nice. Except for two missiles and 16mm nose cannon its not well armed at all. Its only used for strategic missions and is effective in many numbers. Its an ok zoid and the wings move when you wind up the motor, along w/the feet. 

II. Difficulty --> 2/10. I rated the Pteras the lowest because it didn't take much time to build and doesn't require much things, except make sure you don't break the wings.

III. Problems --> The only problems was assembling the wing. 

IV. Price --> $9.99 + Tax at K&B Toys.

V. Overall --> Ptears is a simple zoid to construct a toddler could do it.