Paused

Flip Flap Notes

🎵 Falling-note rhythm game with different note types

Just load an audio file (MP3/WAV/OGG, etc.) and start playing

Drag & drop your file

🎯 Any song, automatically charted 🎹 MIDI / SF2 / SF3 support 💻 No install needed

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SHORT
(2:00) ORIGINAL

Chart will be generated automatically when you start

You can also start with the Space key

Difficulty: — 　Notes: —

🔍 Generating chart…

RESULT

Score
Accuracy
Max Combo
Perfect
Great
Good
Miss
Difficulty
Lanes
Scroll

You can also replay with the Space key

Pick a random song over 1 minute from the MIDI library

⚙ Settings

Difficulty

※ Simultaneous notes are automatically limited when lane count is low
※ In audio mode, changing difficulty regenerates the chart on the next play.

Lane count 4

Scroll speed 500

Canvas resolution (max DPR) 2

Caps canvas resolution relative to the device pixel ratio. Lower values use less memory and are more stable on mobile; higher values look sharper on high-DPI displays. Default 1.

MIDI cache level 5 (chunk)

Higher levels cache more aggressively for complex MIDI (may use more memory). If the game crashes on iOS with MIDI, set the optimization level to 0.

Lane keys

1 2 3 4 5 6 7 8

Lane colors

1 2 3 4 5 6 7 8

Lane opacity 0.35

Button text color (accent)

Color for all canvas text: lane keys, combo, judgment, score, etc.

Judgment line color

Lane divider color

Use a high-contrast color if hard to see on the background image.

Judgment offset 0ms

Increase if audio is late, decrease if early.

Perspective (narrower at the top)

Background

Reset

Clears all saved settings (theme, colors, keys, custom background, etc.) and reloads the page. This cannot be undone.