this game saved the sonic franchise
design: the level design is beautiful and colorful and it feels like I was playing a xbox/ps3 game but still the graphics and character models are great in the wii
gameplay: the gameplay is the old fashion sonic it takes the day-times stages from sonic unleashed 360/ps3 version is which was build with the headgehog engine, but sonic colors couldn't support the headgehog engine and the developers decide to build an engine for the wii, must of the time you play the 2d section because this game levels has a lot of 2d plat forming instead of 3d, but still this game has lot of replay values and something that a lot sonic games didn't have.
overall: this game is perfect and it is what brought sonic back, people wanted to have sonic only with sonic there you have, the voice actors are better than the olds, and the only down side is boss fight there only three boss fights which is disappointing but still this game is awesome and this what fans wanted.