Sonic Rush Adventure review at CVG.

"Retrospectively speaking, 2005's Sonic Rush wasn't the best thing since Jaffa Cakes, as was commonly touted upon its release. But it was still the best Sonic game in ages, and that's because it skimmed out all the extracurricular nonsense that we've grown to associate with Ol' Blue. No interminable minigames. No heat-packing 'Dark Sonic'. Clingy, sycophantic hangers-on kept to a minimum. It was a Sonic game based around going very fast in a number of 2D environments. Genius!"

Full Source: CVG