Keese is already swooping in, and pissing off Vaati would probably end badly for the little guy, so he just stick to the plan. Which turns out to be only a semi-good idea.

On the bright side, he latches onto Arty successfully! The bad news is he is latched onto his claw. Which is hitting him. Yeah. The bat un-latches himself pretty quickly and makes a hasty retreat, much to its trainer's annoyance.

"Where do you think you're going?! Get back in there!" emphasized by an angry point rawr rawr. Keese flutters there unhappily for a moment (can bat-things frown?), but hey, what the trainer says goes.

And since we have so much variety going on here Keese flies in for another Leech Life, only from behind this time. Because faces are just too easy to defend.