I'm considering buying Mario Kart... could you be so kind and answer these questions of mine? 1. How many tracks are there? 2. Are these flying/underwater sequences (as seen in the trailer) normal parts of tracks that everyone drives through each lap, or do you have to do something special/complicated to enter them? 3. Is there a story (single player) mode? Does it suck? 4. When playing over Internet, can you just spontaneously join random people to have a quick race with them, or do they have to be your friends with known friendcodes etc.? 5. Is there a training mode without time limit, preferably racing alone against the clock? Thanks!