Also, I just now realize this crack pairing probably exists purely because of the fact people typo Raph's name as "Ralph" so often that the creator thought of this.
It just feels as though half the mutants were stylized and the other half are trying to be near photorealistic animals. If I didn't watch the series I probably wouldn't guess Leatherhead is from the same series as Michelangelo, purely based on their designs.
I mean, in comparison to the second image's mutants, the main four don't even look like turtles, LMAO
They're arranged left to right within the rows themselves, the ones to the left being favored more.
About the missing ones, I have yet to explore certain routes better. I honestly haven't explored fully some of the ones included anyways.
Also, I don't dislike any of them, so those on the lower end aren't getting hater treatment. I just like the others more.
And visual design isn't taken into account in the rating.