A roar suddenly resonated from below.
Thunk!
The earth started to shake.
What did that thing use to pound the ground just now?!
In a flash I suddenly recalled Angel's hand sonic, but it definitely isn't something
that simple. It was probably something larger, more terrifying, and more
malicious.
“Nice to meet you～”
Why the heck are you acting so leisurely!
“WAAAAAAAARRRRGHHH————!!
Thunk!
That thing pounded the ground again. This time, even our bodies shook from
the tremor waves. What great brute force!

- Angel Beats! Track Zero, Chapter 5, Page 11