Last week, Gamestop listed Sonic Generations for 3DS and we tagged it as a rumour, as always when retailers list unannounced games. However, now SEGA has listed the game in a financial report, it's time to stop thinking "this is a rumour" and start thinking "this bag has no cat in it".

Andriasang found the listing on a SEGA-Sammy financial report, which listed the game for 3DS and PC. With SEGA planning 20 games for 3DS by next March, will Sonic Generations be one of them? We'll keep you updated.

Here's the trailer for the PS3 and Xbox 360 versions of the game.