Sonic Generations' 3DS version will launch in the UK on 25th November, Sega has revealed.
That date is three days after its 22nd November US launch and a couple of weeks on from the PlayStation 3 and Xbox 360 versions, which arrive on European shores next week.
Sega has also firmed up release dates for an array of other 3DS titles, including the handheld version of Mario & Sonic at the London Olympic Games, due 10th February in Europe.
A Wii version of the colourful Olympics mini-game collection is already slated for release on 18th November.
Meanwhile, classic side-scrolling Sega series Shinobi will slice onto 3DS on 11th November. Simply titled Shinobi, it's the first entry in the samurai franchise for some eight years.
Finally, puzzle platformer Crush 3D arrives just after Christmas on 13th January.