THAT'S THE ONLY QUESTION YOU HAVE ABOUT THE PICTURE?
They fall down the waterfall they seem to be standing just at the very edge of and get swept downstream. Suddenly, Tails shows up in the different dimension, having finally decided to become useful and rescues sonic and whoever the pink bitch is supposed to be. (I don't care).
I forgot to mention that Robotnik turned tails into a pterodactyl.
What was tails even supposed to be originally he looks like a fucking rat.