I actually like the reptiles a little more anyway. Most of the time I see the same old north woodland mammals, hedgehog, fox, raccoon, etc. And I wanted to try something different.
And I like iguanas, I've actually made a few iguana characters before, not in the Sega style though. At first I wasn't even looking for the spikey look, but iguanas actually have those. And they are chaotic, spikes in every direction with no pattern at all. So that's what I did here.