This game is really cool, but there’s three things that a lot of people don’t like. 1. It’s hard to earn coins, plus, you need to spend a lot of them to upgrade your bike, and buy new ones. 2. The bikes, the real problem here is the cost of the bikes, bike 1 is free, bike 2 is about 1,000 coins, bike 3 about 4,000 coins, but bike 4 is 12,000 COINS! I bought bike 3, and had about 400 coins left, which ment that I have to get 12K coins to get bike 4. The price is not reasonable. It went from 4K to 12K! Bike 4 is 8K more coins than bike 3. 3. The Mx Factory Challenges, the only problem with them is the bike they give you, in my opinion that bike is overpowered. It has too much power which makes it hard to control, which also makes some challenges extra hard.