Despite airing at the end of season 1, this episode was actually the series pilot, which is why the animation and character designs look so different compared to the rest of season's episodes.
Sally: It's Sonic!
Antoine: I thought I detected a fould odor.
Sally: It's bad enough that Sonic doesn't help out, now I'm worried about him, and Tails.
Bunnie: I'm sure they're fine, Sally.
Sally: Do you think Sonic does all those childish things just to make me mad?
Bunnie: No honey-pie, I think that's just Sonic. It's what makes him special.
Muttski was green before he was robotocized.
Sonic has a picture of Uncle Chuck.
This is the first time we see Tails use his two tails to fly.
This is the first episode of the series to not have "Sonic" in the title.
This is Muttski's only appearance on the show, although he was a major character in the comic books based on the show.