That looks like a pit bull mixed with a bull
I think this big boy was a success; whatever was done to get this finished product was a good move so far. This big boy is not slow nor waddles when he runs and he has a light spring in his step. (very important) Now they didn’t show whether he has endurance so that remains to be seen and I like a cropped tail but he’s still a good looking dog, not like some of the monstrosities I’ve seen on you tube. Whilst I wouldn’t want to meet him down a dark alley, the video shows a gentler side to the pooch. He is more than happy for his owner to pet and cuddle him. But, he does has teeth which could rip your face off!