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21 Things You Probably Didn't Know About Sonic The Hedgehog

With Sonic Boom revealed as Sega's latest addition to the Sonic franchise, here are some things you didn't know about everyone's favorite hedgehog.

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1. Before the arrival of Sonic, Sega's unofficial mascot was was a big-eared dude named Alex Kidd.

His games appeared mostly in the Sega Master Drive. When executives at Sega made the decision to compete head-to-head with Nintendo's Mario, Alex was demoted as mascot and replaced with Sonic.


4. At one point, Sonic's infamous arch-nemesis Dr. Robotinik was considered for the lead of this new Sega franchise.


When deciding an enemy for Sonic, designers went back to the old character designs and picked this drawing out.


15. Sonic's biggest weakness, the inability to swim, was based on a mistake.

According to Yuji Naka, one of the creators of Sonic, "[I] assumed that hedgehogs can't swim, so that's why [I] made it that Sonic can't swim... Apparently hedgehogs can swim, but they can't climb out of water."


17. There is a creepy message from the devil hidden inside Sonic CD.


The following reads: "Infinitely fun. Sega Enterprises. [Signed] Majin." "Majin" means "devil" in Japanese. The music and the freakish Sonic face in the background only add to the horror (Spoiler: "Majin" is a nickname for Masato Nishimura, one of the game's designers).

19. Sonic can realistically run at the speed of sound (768 mph).

Christopher Lee / Getty Images

A regular hedgehog can sprint at a mere 6 mph. Also, running at the speed of sound for two minutes will burn about 210,00 calories. That shouldn't be too much of a problem for Sonic because...


Sonic Boom is expected to launch this year on Nintendo's Wii U and 3DS, along with an all-new CG animated TV series and toy line.

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