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Note: If you have problems or questions about beatoraja or BMS, or have any comments on the guide, please make a post on the Discussions Page. I actively monitor the Discussions page for messages.

Please don't create issues in beatoraja's issue tracker! The issue tracker is not for troubleshooting.

What is beatoraja?

beatoraja is an open source BMS Player in active development.

If you're here just for more information about BMS (and not beatoraja), check out the links below. These links are useful even if you are using LR2 or some other BMS player.

Another popular BMS player is Lunatic Rave 2 (LR2). Most of this guide is for beatoraja.

Note that judge timings and gauges in beatoraja differ slightly from LR2. There a version of beatoraja that has been modified to use LR2 judge timings and gauge (but it does not support beatoraja's internet rankings). It can be found here.

Getting Started with beatoraja

This guide explains how to set up beatoraja properly, with the UTF-8 fix applied. We apply the UTF-8 fix now to avoid potential locale-related issues later on.

If you run into any issues during setup, the Troubleshooting section might help.

There are two options for setting up beatoraja.

Setting up beatoraja without Installing Java

This is for Windows only.

1. Download beatoraja

  • Download beatoraja from here.
    • You should see multiple links to choose from. Use the "-jre-win64" link.
  • The "-jre-win64" link includes a portable build of Java in the download, which we will be using to run beatoraja.
  • You might notice a "beatoraja.exe" file in the download. You can ignore (and even delete) this, as using the .exe means beatoraja will run without the UTF-8 fix.

2. Apply the UTF-8 fix

3. Run beatoraja

  • Double-click beatoraja-config.bat to run beatoraja.
  • See Configuring beatoraja for information on things you may want to configure before you start playing.

Setting up beatoraja with Java

You might want to set up beatoraja this way if you already have Java installed in your computer.

Note: If you are on Mac/Linux, use beatoraja-config.command instead of beatoraja-config.bat.

1. Download 64-bit Java

2. Download beatoraja

3. Apply the UTF-8 fix

  • After extracting beatoraja, you should see a beatoraja.jar and a beatoraja-config.bat file in the folder.
  • The easiest way to apply the UTF-8 fix is to replace beatoraja-config.bat with the one over here.
  • Alternatively, you can just edit beatoraja-config.bat to apply the UTF-8 fix. Instructions are over here.

4. Run beatoraja

  • Double-click beatoraja-config.bat to run beatoraja.
  • See Configuring beatoraja for information on things you may want to configure before you start playing.

Locale Fix

Note: Also known as the UTF-8 fix. If you have followed the earlier instructions and have applied this fix, you may skip over this section.

Effects of locale issues

Not being on the correct locale can cause some issues in beatoraja. Most of the time, if you are experiencing crashes in beatoraja, it is due to a locale issue. Thankfully, there is an easy fix for all these crashes.

The problems locale issues will cause:

  • On skins like ModernChic or LITONE5 which have option names in Japanese, these option names will not save. When beatoraja is closed, the skin-specific settings will be reset.
  • On skins like LITONE5 which have folder names in Japanese, beatoraja might not be able to access resources inside those folders, and this can cause beatoraja to crash.
  • If you load a bms with file or folder names containing Japanese characters or garbled characters, certain parts of the bms may not load properly. Playing the bms twice in a row may cause beatoraja to crash.

Fixing locale issues

There are two ways to fix locale issues in beatoraja. This fixes all the problems listed above.

  • Method 1: Switch to Japanese locale on your PC
  • Method 2: Run beatoraja using the UTF-8 encoding (Recommended solution)

Method 2 is highly recommended. If you are running beatoraja using the UTF-8 encoding, switching to Japanese locale is NOT required (I have not once switched to JP locale). Also, even if you are already using the Japanese locale, switching to UTF-8 encoding is still recommended, as this resolves crashes that happen if a BMS folder name is garbled.

Note: Opening .zip files is another reason frequently cited for switching to JP locale. Switching just for this reason is not recommended however, as there are better solutions to this. More info here - locale issues when opening zip files.

How to run beatoraja with UTF-8 encoding

  • Remark: If you don't want to try applying the fix manually, you can instead just replace your beatoraja-config.bat file with this file over here, which already has the fix applied.

The UTF-8 fix is applied by making a simple edit to the beatoraja-config.bat file (note that beatoraja-config.bat is what you are using to open beatoraja).

Open up beatoraja-config.bat (or beatoraja-config.command, depending on which you use to start beatoraja), and add -Dfile.encoding="UTF-8" to the end of the _JAVA_OPTIONS= line.

Note: The -Dfile.encoding="UTF-8" argument must be placed outside of the inverted commas ''. This sounds odd, but the setting will do nothing otherwise. There must also be a space before -Dfile.encoding="UTF-8".

The line should look like this:

set _JAVA_OPTIONS='-Dsun.java2d.opengl=true -Dawt.useSystemAAFontSettings=on -Dswing.aatext=true -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel' -Dfile.encoding="UTF-8"

Skin settings might reset after switching to UTF-8, because the skin settings may have been saved in the default encoding. It shouldn't be too much trouble to set the skin settings again, since you only need to do this once.

It might be possible that switching encodings might cause your player config file (in player/player1/config.json) to be unreadable. If the config file can't be fixed, you may have to replace the config file with a new one.

How to replace (clear) your config file

  1. Backup the player's config.json (player/player1/config.json)
  2. Clear the contents of the file and replace it with just the characters {}. This forces beatoraja to generate a new config.json file from scratch (Note: beatoraja won't start without the {} in the file).
  3. After the player profile has been cleared, open the beatoraja config again, go to the skin select menu and make sure a skin is properly set (i.e. not blank) for each of the important categories (e.g. 7KEYS, DECIDE, RESULT, SKIN SELECT). beatoraja crashes if it tries to load a blank skin.

Note: The player's config.json is different from the config.json you see in the main beatoraja folder! The player's config json is in the player/player1 (or player2 etc) folder, and contains settings that are specific to the player profile, like skin settings.

There should be no more crashes / issues after that.

Configuring Beatoraja

This covers some of the more important things to configure when first starting the game. Refer to beatoraja Configuration for more detailed information on what you can configure in beatoraja.

In Config Menu (before starting game):

Go to the Resources tab to add your song folders. (add them under BMS Path, not Table URL!) If you are looking for songs/charts, see downloading songs/charts for more information.

If you wish to use difficulty tables, add table links to the Table URLs and click Load difficulty table to load all the listed difficulty tables into the game.

If you are using a IIDX controller with axis input, you might want to turn on ANALOG SCRATCH under the Input tab. This needs to be turned on individually for each mode (7KEYS, 5KEYS, etc). See Analog Scratch for more information.

Most of the settings under Play Option can be configured in game.

It might also be good to get a good skin for beatoraja too. Skin settings can be set in the Skin tab.

If you play on the P2 side (turntable on right), you can switch to P2 in the skin settings.

In Game (during music select):

Press 6 on the keyboard to open key config.

In the key config, you should have binded the START and SELECT buttons (default Q and W on keyboard). Hold START, SELECT or START+SELECT to access the three play options menus. These menus cover the majority of the play options available in the config.

Press F12 to open skin settings in-game.

Check the Music Select page to find out what else you can do in this screen.

In Game (during play):

Before the song starts, the game gives you some time to adjust your scroll speed settings.

  • Double-tap START to turn on the SUDDEN+ lanecover
  • Hold START + turn turntable to adjust lanecover height (white number)
  • Hold SELECT + turn turntable to adjust green number (related to scroll speed)

The song will not start until you have finished adjusting. A full explanation on sudden+, scroll speed and green number is given here: Scroll Speed and Green Number

How to navigate menus

The turntable (scratch up / scratch down) is used to scroll through menus.

Notation: keys 1 to 7 are the keys from left to right. White keys are 1,3,5,7 and black keys are 2,4,6.

Generally, white keys go forward in menus and black keys go backward. However, in beatoraja, each key actually has a slightly different purpose.

  • Key 1: Go forward / start song
  • Key 3: Go forward / start song on practice mode
  • Key 5: Go forward / start song on autoplay mode
  • Key 7: Go forward / play selected replay
  • Key 2,4: Go back / change sort order if you are on topmost level
  • Key 6: Select replay

Guide Pages

Home

FAQ and Troubleshooting

Discussion

BMS

BMS Overview

Controller and Keyboard Gameplay

Downloading Songs

Difficulty Tables

Making Charts

BMS Tools and Resources

beatoraja

Setting up beatoraja (Home)

Music Select

Configuration

Practice Mode

beatoraja Hotkeys

Internet Ranking Services

List of beatoraja Skins

Miscellaneous

Scores and Clears

Scroll Speed and Green Number

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