Beat these times to unlock the fast staff to unlock stuff like Tiny Titan (1), Funky Kong (4), Baby Luigi(8), Spear (Torpedo)(12), Sprinter (B Dasher MK 2)(24), and even Mii Outfit B! (32) Tips to unlock fast staff: 1. Start with easy ones. Luigi Circuit, Peach Beach, ect will easily unlock quickly cool stuff. 2. Choose fast, nimble bikes, and do lots of wheelies. Bullet Bike, Flame Rider, and Mach Bike are always good choices. If you're good with something else, feel free to use it if you can unlock stuff. 3. Find shortcuts. Remember, you have 3 mushrooms. Use them wisely to cut time. 4. Take breaks. When I couldn't beat a time within 15-20 minutes, I took a break to cool off. When I came back relaxed, I was more likely to stay cool and unlock the ghost. 5. Always keep trying. Practice will make perfect, so explore the course and take practice runs if needed.