Has it really been 20 years already since SEGA first introduced Sonic the Hedgehog? It seems like just yesterday that I was first introduced to SEGA’s lovable mascot on the SEGA Genesis. This was back in 1991. Wow. Where does the time go? SEGA today put up a little teaser commemorating Sonic’s 20th anniversary that shows him running around on very familiar territory. It’s a look at a new game coming out but doesn’t show any actual gameplay. Not much else is shown but it looks like SEGA might have some really big plans for him this year.