Just read up on something about Starfox. Apparently, all of the creatures in the Starfox universe have amputated legs. It's so that they can have more blood to the brain to withstand all of the G-forces they go through. That's why every 'clean' fanart and cover art you see, they have ether metal legs or large boots. So with every porn you see with Starfox or anyone from the Starfox universe have regular legs, you can go right ahead and troll them by saying they did it wrong.