In most songs, grades are a combination of verse clears and lives lost; exceptions are marked at the end.
- Evaluation A.png
- Evaluation S.png
- Evaluation B.png
In Easy/Normal/Hard difficulties, a verse is considered cleared if the health bar is +0% or higher. The grades are as follows from lowest to highest; you get the highest grade for which you satisfy the requirement:
| F | Fail at least 3 verses, or fail all verses of a song (if it has less than 3 verses). |
|---|---|
| C | Fail exactly 2 verses (if the song has at least 3 verses). |
| B | Fail exactly 1 verse (if the song has at least 2 verses). |
| A | Clear all verses. |
| AA | Clear all verses, and have total overflow +200% or higher. |
| S | Get AA, and have no red damage by the end of the song. |
| SS | Get S, and take no damage at all during the song. |
In Overload difficulty, there is no concept of clearing verses. The grades are based only on your total overflow.
| A | Clear all verses. |
|---|---|
| AA | Clear the song, and have total overflow +600% or higher. |
| S | Clear the song, and have total overflow +1200% or higher. |
| SS | Get S, and take no damage at all during the song. |
The exceptions for the above are generally related to special, story-related songs:
| Song | Notes |
|---|---|
| Insomnia | The boss has 10x health than usual. Therefore, a verse is cleared if the health bar is -90% or higher (less negative),
and the AA requirement is total overflow of -340% or higher. (In Overload, total overflow +60% for AA and +120% for S.) |
| Beyond The NOISZ | Only one verse, and it's impossible to get an F: if you don't have enough damage near the end of the song, you will die to void lasers. |
| MultiVerse | Only one verse with forced death at the end. So F is impossible, and you get an A for reaching -899% or higher, even if you then die.
AA is -699% or higher. S is -699% or higher, and you must survive until the final void lasers. |