價格：免費
檔案大小：133 MB
版本需求：需要 iOS 6.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Rev up your engine, it’s time to unleash your dirt bike on some of the most wicked winter mountain roads available. Avoid falling rocks and treacherous cliffs as you race as far as you can go. Are you brave enough?
Features:
- 3 Rad Bikes to choose from
- Falling Rock hazards
- High quality 3D environment
支援平台：iPhone, iPad