There are cold gas thrusters on top of the first stage that fire to keep its balance. If it lands in an uneven manner and starts to tip, those should be enough to maintain the landing. You can see them working in the video embedded in the link below. They only didn&#x27;t work in that instance because the main rocket motor fired too long at it was too much for the small thrusters.<p><a href="http:&#x2F;&#x2F;www.spacex.com&#x2F;news&#x2F;2015&#x2F;06&#x2F;24&#x2F;why-and-how-landing-rockets" rel="nofollow">http:&#x2F;&#x2F;www.spacex.com&#x2F;news&#x2F;2015&#x2F;06&#x2F;24&#x2F;why-and-how-landing-ro...</a>