Stills appears in all six volumes of Scott Pilgrim.
Scott Pilgrim vs. The World Movie - In the movie Stephen Stills is played by Mark Webbster. Stephen Stills s a realtivly minor role in the movie only being involved in the band parts of the story and needed slaps from Scott to break his negativity at some points. When Sex Bob-Omb is scouted by G-Man (Gideon), Stephen signs the band up along with Kim Pine and Young Neil replacing Scott. They end up playing the Chaos Theatre when Scott breaks in the defeat Gideon. The first run down the band has no real opinion about the fight since they have sold out, but after Scott's extra life run through the band cheers him on with the song and Stephen Stills goees on to grab as many of the coins as possible from Gideons defeat.
Scott Pilgrim vs. The World: The Game - Stephen Stills is one of the four initial playable characters in the game. His assist with Knives as her throw extra large daggers across the screen. Stephen exists levels via a Green Pipe in a nod to the Super Mario Bros. games. His ending depicts Sex Bob-Omb becoming world famous though it is implied to be a dream. In Kim Pine's ending He and Scott are both shocked on the sidelines when Kim enters a relationship with Knives. In Negascott's ending he ,alongside the other playable characters, becomes a slave when Negascott sets out for world domination. In Knives ending he is seen at Knives an Scott's wedding.