When Sonic woke up once a day, he decided to take a walk in his beautiful world without his wife knowing it. But suddenly he saw a blue spinning circle above his head. He jumped in it and found himself in Sonic in Mario World, and then he began his journey. In this adventure game, the rule is the same as what is in Mario games. You need to collect coins, mushrooms, and you should avoid other animals such as turtles. You?d better not fall into the water or you will lose one of your lives. Try to get as many points as you can.