Mortal Kombat 3 had lobster - sort of...

We seem not to be the only ones with a lobster meme, Mortal Kombat 3 CD version (you know, the round things that go in the PC coffee holders) had a audio track on which someone recited in reverse a poem about a lobster ('Tis the Voice of the Lobster.) ...

https://www.reddit.com/r/creepygaming/comments/c7l1of/mortal_kombat_3_completely_random_audio_on/

Are there easter eggs in ZK files as well?... Like the startcraft annoyed units if you over click them.

quote: Are there easter eggs in ZK files as well?

In general yes (but I don't think any are sounds).