Yup, that's a growl coming out of Catra's mouth when she lands on cold floor instead of warm idiot, and her tail lashes angrily before she pounces up again; reaching the security panel at the same time as Adora and smacking her hands to ruin her input of the door's exit code.

"Hands off, I'm gonna do it!" she argues quickly, anticipating a squabble as she shoves the side of her body roughly into Adora's to force her away. She will be the fastest at jamming in the code, and she will be the first one onto the roof, and then Catra will lord it over Adora for the rest of the day just like she deserves after biting Catra's foot.