Ultimately, there are far more successes than failures in Sonic Generations short but sweet campaign. The simple pleasures of whisking through each level trying to better your times on the good stages make up for the occasional duff note. And once you have completed each world, a huge amount of challenges that repurpose each level for a specific task are made available. These challenges take guidance from the superb DS version of Sonic Colours, asking you to race your doppelgänger, collect a certain amount of coins, or complete a stage under certain conditions. Some these can be a bit dull, and there's the odd stinker, such as a poorly judged face off against crocodile chum Vector where you have to play tennis with musical notes -the biggest challenge with this one being the dodgy camera. However, the majority of them are tasty bite-size treats, with Sonic Team shuffling level layouts and dropping in neat, one-shot ideas. You get the feeling that maybe, just maybe, they were starting to have fun making Generations. Which is a sharp contrast to much of the joyless dreck pre-Colours.