At least it proves better than the xbox version...
Anyway, the game starts in a space battle on eggman's ship. Sonic is lured into Eggman's most devious trap yet, turns into a werehog at night, loses the power of the chaos emeralds and Eggman splits the world into 7 continents, and unleashes a plague upon the planet to build eggmanland once and for all.
Day Stages:
Day stages are a whopper. They have good speed, nice environments and the new boost guage. Now I love this. Ever thought of trying to get the magical S rank? They have finally given you a chance. But the bad thing: While boosting, you need to make sure the screen is lined up with the direction you want to go, or bon voyage. Also, turning has been made easy, but wall jumping? SEGA, this is your saddest attempt yet to make sonic look like mario.
Night Stages:
This is one of the badder bits. Night is okay, but combat sections can get a bit annoying and you sometimes have dangers of falling of edges while dashing or dash jumping which can get frustrating. Enemies aren't that easy though. Big bosses like titan a big mother (Not stage bosses) can deal a lot of pain in a few seconds before you get away. But the good bit is you can get a break from all that speed, and control yourself more easy.
Other things:
Gaia gates are a new way of going through stages, but I thought you can go on a course through the village of each place. Cutscenes are beautiful, making it still like the Xbox 360 and PS3. But 1 major diffrence: The time of day goes manually.
What do I think?
Although night stages are a bit sad, you can still pass them and feel good. And with over 30+ stages, you would be playing this for over a month. Sonic fans will still enjoy this.