Xenomorph lunge while tail whiping.

Toonster

https://youtu.be/XjLttFXsIFI

Step 1: Open PTB

Step 2: Select Xenomorph

Step 3: Press M2 (Tail whip attack)

Step 4: Before the attack starts, press M1(Lunge) to cancel the attack.

Step 5: Note: The tail gets stuck at the top of the screen, however this is just a visual bug. The tail whip attack still works as normal.

Bonus: I was only able to do this while on a hill, unsure if this is related.