Snake Robotic Legs?????

This may be one of the more bizarre videos you’ll see today . . . a YouTuber wanted to give snakes their legs back, so he created a set of robotic legs. (???) He attached legs to a long plastic tube. Then lets a snake slither into it, and turns it on. The Internet seems to enjoy it, and maybe the snake did too? It’s a longer video, but he explains why he did it. (The snake crawls into the tube around 7:40, and begins “walking” around 8:15)