Play footsies. You can jump. You can't use interactables usually. I found a way to stuff all her wake ups with mb b3 theres a thread somewhere I'll link it in like 5 seconds.
You can stuff every wake up minus DP with raw b3. Including the one where she jumps away. Guess I didn't show it in the video. Mb b3 will either hit the DP or batgirl will just go through Her.
Oh look the video is right up above me too.