I mean, like, seriously? Blob feet? Toeless feet? It would have been better if they had three toes. Nothing wrong with that. Most cartoon animals like Garfield, Bugs Bunny, Tom Cat, and company have three toes. Some have two (Jerry, Odie). Giving them human feet, of course not, doesn't make sense, they're anthro animals, yes, but they'd still need to have some animal like features.

SO, all sonic characters have nothing but blob feet? Seems like a lazy design choice to me.

All of this happened due to Sonic Adventure 2. Apparently the people who worked at it, couldn't render right Big's toes due to the graphics at the time.. if i heard right. So now they are stuck with blob like feet!