As a small handheld title, this is a fair bit of fun. There's a decent sense of speed, though nothing up to what Sonic really should be. The visuals are nice - a great 2.5D feeling is created. It works perfectly as a pick-up-and-play game - do a quick race against a 'rival' in a course, get a rank, put it down. If you're looking for a big Sonic platformer, look elsewhere. But as a small fun game, this is fine.