3:56 Yeah, the liquid being white was always a meme edit. In the original episode, Sonic has to enter a pipe and go through the sewage system in order to enter Robotnik's base, ending in the gag that you see in the clip.
Hi Fadel! I'm greatful my original video at least was featured! It's the Utopia one! Unfortunately the video I sent I deleted after you featured cause at the time I was feeling a little anxious about it not being creative but I'll resend that old vid to your tweet that was featured out of honour of it being featured So thank you Fadel!