CheatCodes.com has the complete list of all N+ Achievements and Gamerscores for X360, including all secret Achievements. All official X360 achievements for N+ as of Wednesday April 21, 2021 are shown below, or you can print out our Printable Achievements Checklist that shows all N+ Achievements and Gamerscores in a simple quick-reference format.
Complete 15 Single Player episodes.
Complete 30 Single Player episodes.
Complete 40 Single Player episodes.
Complete all 50 Single Player episodes.
Complete 5 co-op episodes.
Complete 10 co-op episodes.
Win 10 races in ranked online matches.
Win 10 survival games in ranked online matches.
Complete one tutorial episode.
Complete an episode without dying in Single Player mode.
Complete an episode and obtain every gold piece in Single Player mode.
Continue playing to unlock this secret achievement.