This little project explains how Ribbon got her Mobian form and how she was rescued. Artwork done by my DA buddies Shard-Of-Life and Matakiethehedgewolf.
When Greg saw Ribbon for the second time (at age 16), she invited him to swim with her. He agreed. Before diving, she gave him a shell necklace that allowed him to breathe underwater temporarily. However, along the way, Greg got stuck in seaweed. Ribbon tried to help him out, but her tail touched a strange gem-A Chaos Emerald. In a flash of light, her tail disappeared, replaced by legs and a skirt the color of her tail. She had become a Mobian. Ribbon, not knowing how to swim with legs, immediately freaked out, causing her to lose a lot of air. Greg managed to get himself out of the seaweed and get to the surface, but she was unconscious by the time he got her to land due to her freak-out. He took her home, and in time she woke up, and then Greg explained about what happened. Ribbon didn't believe it at first, but slowly came to accept her new life as a half-merhog Mobian.