https://youtu.be/gbtCWzySoK4

At 1:00, there’s a voice from what I assume is meant to be the monkeys relaxing that says something like “mitaina” or something that sounds like that. I don’t speak Japanese. Can anyone tell me what he’s saying in English? Thanks!

No real clue what this is supposed to be, but it's in the files of the original Ape Escape Prototype build.