My daughter used to do that first thing... grab onto your hands and walk up to your belly and then flip over. The hard part was when she did it to poor unsuspecting people who thought she just wanted to hold their hands! We signed her up for gym class after she started doing a full run, hands down & then flip over at about 2 1/2 . I was afraid she would break her neck! I guess that would just about describe most of our kids here right?
The swing thru the legs on that video would have scared the ^%$#@! out of me though.