Rolling Rolling Rolling

Though Ats first rolled over a couple of months ago, he did not seem too interested in it after that and would roll over only occasionally. Yesterday morning though, suddenly, he decided he wanted to roll all over the floor. We put him down on his play mat and suddenly he just rolled right out of it and across the living room floor. He kept doing it all day yesterday and this morning too. Here are his various attempts at rolling.

He is also trying very hard to scoot forward. I think in no time he's going to be mobile and we're going to have our hands full. The gate's going up soon!