First review :D
The thing that I noticed first was the grammar mistakes. there are spaces after comma's where they are not needed, and sometimes the sentances just don't make sense (However, this won't change the rating because it's not really a part of the game). The story of the game has no changes from the original sonic, as it is just a remake. The only game difference is that it's on the Wii U, has touch screen and its 4 player. You can play with up to 4 players during the singleplayer game, which isn't very singleplayer, but there isn't a word I can use to describe it. It's mostly a modern day remake of Sonic CD.