In World of Warcraft, the Nitrogen Fel Bike is a unique mount that is often associated with a specific questline or activity. According to the information you provided, the method to obtain the Nitrogen Shadow Fel Motorcycle is roughly as follows:
Answer: Collect puzzle pieces in the map to unlock;
1. At the coordinates of (44.55 7.98), you can find the ruins of Marshall Camp in Un'Goro Crater and obtain the strange key to incapacitation.
2. Complete tasks related to the evil motorcycle to obtain strange gems.
3. Combine strange gems and disabled strange keys to get strange keys.
4. Continue to the designated area, collect other puzzle pieces, and unlock the Nitrogen Shadow Fel Motorcycle.
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