Complex sentence: He also appeared in "Mario & Sonic at the London 2012 Olympic Games" as a playable athlete and in "Sonic & All-Stars Racing Transformed", where he drives what looks like a black miniature G.U.N. tank.
Split into simpler sentences: He also appeared in "Mario & Sonic at the London 2012 Olympic Games" as a playable athlete. Shadow also appeared in "Sonic & All-Stars Racing Transformed", where he drives what looks like a black miniature G.U.N. tank.