Stuck in a strange rift in time and space, Sonic finds himself coming up against levels from the games of his past, from Sonic the Hedgehog way back in 1992, all the way through to the Wii's fairly recent (and really rather good) Sonic Colours. It opens with Sonic and friends having a nice picnic in a park as a surprise birthday party for Sonic (after all, he's no longer a teen) when all of a sudden, a vortex opens in the sky, and sucks Sonic and friends into it.

Once you've finished the stage, you'll be presented with a cutscene that fills you in on the plot. In traditional Sonic style, there's something of an odd storyline here. What follows is a 2D side-scrolling level that'll see you speeding through green fields, looping through loops, springing from platform to platform, collecting rings, and destroying the evil robotic monsters that lurk in the long grass as you whizz to the finish. With the ever helpful small robotic blue cute thing Omochao on hand to help you out, you should have no problems getting to grips with the game, as one button does pretty much everything anyway - and Omochao's there to explain anything new players may not have come across before. Dropping you straight into the grassy fields of Green Hill, if you've ever played the original Sonic, it's a stage that should be instantly recognisable, as it's actually exactly the same as in the original, just remade with fancier graphics.

In something of a break from gaming tradition, Sonic Generations actually opens with a level.

Everything wrong with sonic generations