If you needed further proof of Sonic’s rapidly growing popularity, consider all the stops Sega pulled out for the launch of Sonic The Hedgehog 2. Sega spared no expense to push its new Sonic game, blowing $10 million on advertising and releasing the game simultaneously in both Europe and the US, which was virtually unheard of at the time. The result was Sonic 2sday and the excitement it generated is hard for fans to forget.