Chicken Journey - Exploring Town & Toxic?! Underground

I start the cozy game, Chicken Journey, and meet many cute chicken townspeople! There's some weird radioactive looking water beneath the town though. And where are those weird sounds coming from?
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Side note: Sorry about the weird cuts and poor sound towards the latter half of the video. I tried to cut out the worst of it but my screen recording program seems to have issues with sound after the 15 minute mark of recording.