Editions: Sonic the Hedgehog (1991), Sonic the Hedgehog 2 (1992), Sonic the Hedgehog Spinball (1993), Sonic the Hedgehog 3 (1994), Sonic & Knuckles (1994), Sonic Adventure (1998), Sonic Adventure 2 Battle (2001), Sonic Advance (2001), Sonic Mega Collection (2003), Sonic Heroes (2003), Sonic Mega Collection Plus (2003), Sonic Rush (2006), Sonic and the Secret Rings (2007), Sonic the Hedgehog Mobile (2007), Mario & Sonic at the Olympic Games (2007), Sonic Unleashed (2008), Mario & Sonic at the Olympic Winter Games (2009), Sonic & Sega All-Stars Racing (2010), Sonic Colors (2010), Sonic Generations (2011), Mario & Sonic at the London 2012 Olympic Games (2011)

Publisher: Sega

The fastest thing alive zoomed onto the scene as Mario's most formidable rival, and over the years the speedy 2D hedgehog has seen his share of ups and downs, but we're still rooting for him, even if his adventures do seem to be rapidly declining in quality -- especially if they start to look up like Sonic Generations, a throwback to the glory days of the hedgehog.

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