Sally Acorn is Sonic`s 2nd Girlfriend. She only appears in the comics. Sally Acorn went through loads appearance changes in the early comics. She got robotized in Archie Sonic Comic issue 230, but, she is getting unrobotized soon and she got a new look:
In Archie Sonic 225 Sally got shot down by Eggmans gun but Archie but she survived
Sally was Sonics girlfriend for a long time. She fell out with him in Archie Sonic 134 but made up in Archie Sonic issue 222.