I picked up Iguanus in that Hasbro Pulse stock last week. He's pretty cool.
My intention with Core Class is generally to just get the ones that are 'in scale' with the larger figures, however, I can be convinced collecting the silly tech specs they put on the boxes. I was disappointed to see Iguanus didn't have one on his box only to be pleasantly surprised to see it on his instruction booklet*.
Here he is in motorcycle mode. He is sturdy enough, but he feels kind of loose in the limbs. Not sure if its my copy or all of them, but he's definitely one you don't want to be switching modes on a lot.
And here he is with his fellow G1 Decepticons from Wave 1 for scale purposes -
*I checked Legacy Silverstreak's instruction since he also didn't have a Tech Spec on his box and unfortunately there isn't one. Ironically, the Masterpiece version MP-18 Bluestreak has a bunch of ? for specs because he's from an alternate universe, so maybe that's what they're going for here.