Goon Doc - Slug it Out 1

Hi everyone, I’ve been curious for years about the possibility of unlocking Goon Doc in Slugterra: Slug It Out 1. I play on iOS, but I remember hearing rumors back in 2018 that this slug was available in specific Android versions, like 2.9.9 or 3.0.0. However, those versions now seem to be practically lost media.

I’ve checked the current versions of the game on iOS, but it doesn’t seem to include Goon Doc. Does anyone know if it was ever possible to unlock her or if she was exclusive to earlier versions of the game? Also, any tips on finding those older Android versions would be super helpful.

Thanks in advance for any help! Hopefully, someone here knows more about this mystery.