I'm having trouble with the Nidoran Manip in Pokemon Red. Hopefully someone can tell me what I'm doing wrong. I believe I got it on my second try. If I did I'm pretty sure that is my first time getting it. Does the B+Select+Up, Hold Start, Hold A part matter for the manip or just the walking and A?

I cut together the attempts that I felt like I did it right and it just didn't work.