The PPM Achievements are two Achievements a player can accomplish in Audiosurf. There are two PPM Achievements: PPM 10,000 and PPM 30,000. To attain them, the player's final calculated track score must meet or exceed an average of 10,000 or 30,000 points per minute, respectively. In addition, these songs must be at least three minutes long.
For example, if a song is exactly three minutes in length, to achieve PPM 10,000, the player must score at least 30,000 points in total. Likewise, for the PPM 30,000 achievement, the same song would require a score of 90,000 points.