- Version 2.05 - 31 August 2026
This update includes the following improvements:Improved CRT filter (SCANLINE: ON)Added analog-stage emulation for FM audioFixed controller button labelsRemoval of the “Avoid Notch” Option (macOS)Updated the rendering systemCRT FilterIn previous versions, enabling SCANLINE: ON could cause visual noise on some displays. This update improves the filter so that it renders correctly across all supported environments.We have also added screen curvature and gloss effects modeled after a CRT display, creating an experience that more closely resembles a classic arcade screen.As a result of these improvements, SCANLINE: ON is now the default setting for new installations. When updating from an earlier version, your existing setting will be preserved. To try the new filter, select “SCANLINE: ON” under “CONFIG” on the title screen.Analog-Stage Emulation for FM AudioIn previous versions, music play…
- [Windows Update] Audio Playback Issue Fix (ver2.04) - 17 February 2026
An issue has been identified in the Windows version of Battle AirForce where audio may occasionally stop playing during gameplay.Additionally, when this issue occurs, the game may take longer than expected to fully close.This update implements a fix for the above problem.■ Issue Details- In the Windows version, audio may occasionally stop playing during gameplay. - When this occurs, the game may take longer to terminate properly.■ CauseThe issue was traced to a Windows-specific audio handling problem related to the DirectSound implementation.■ Affected Platforms- Windows version only- The macOS and Linux versions are not affected.As a result, this update applies to the Windows version only.We apologize for any inconvenience this may have caused. Thank you for your continued support of Battle AirForce.
- Version 2.03 (macOS only) - 18 December 2025
In this update, we have applied Apple’s official notarization to ensure safe launching on macOS.This helps prevent issues such as the app failing to launch or security warnings appearing after future macOS updates.
- Version 2.02 (Linux only) - 15 December 2025
This update applies to the Linux version only.To improve long-term compatibility, we have updated the Linux executable to remove dependencies on the shared libraries libgcc_s and libstdc++, switching instead to a configuration that uses static libraries.As a result, the executable now depends on the following shared libraries:$ readelf -a -W game | grep NEEDED 0x0000000000000001 (NEEDED) Shared library: \ 0x0000000000000001 (NEEDED) Shared library: \ 0x0000000000000001 (NEEDED) Shared library: \ 0x0000000000000001 (NEEDED) Shared library: \ 0x0000000000000001 (NEEDED) Shared library: \ 0x0000000000000001 (NEEDED) Shared library: \
- Version 2.01 (macOS / Linux) - 15 December 2025
This update is intended to improve compatibility for the macOS and Linux versions.There are no changes to the gameplay content.macOS Version ChangesThe game executable has been changed from a single ELF-format binary to a .app bundle (macOS application format), and code signing has been applied.As part of the code signing process, the SDL2 library used as a dependency has been replaced with a locally built static library.The locations for log files and configuration files have been moved from the installation directory to Steam’s user data directory.Due to this change, existing settings may be reset.Linux Version ChangesSDL2 has been changed to a fully static library.The locations for log files and configuration files have been moved from the installation directory to Steam’s user data directory.Due to this change, existing settings may be reset.
- 🚀 Battle AirForce: FM Rebirth Update Now Live! - 23 October 2025
The FM Sound Update is now live!Every in-game track has been completely rebuilt using an authentic YM2612 FM synthesis model.After updating, FM Sound Mode is enabled by default, letting you experience the classic 16-bit tone the moment you start the game.⚙️ Update Highlights🎵 All background music remade using authentic YM2612-style FM synthesis🔊 FM Sound Mode is now enabled by default, with an option to switch back to the original wavetable sound🛠️ Minor performance and UI improvements🎮 FM Sound Is Now the Default ExperienceFrom this update onward, FM Sound Mode is the new default for Battle AirForce.The signature YM2612 tone — with its rich overtones and expressive LFO — adds new depth to every mission.If you’d like to revisit the previous version, the original VGS Sound Mode remains available via the Options menu.💬 Tell Us What You Think!If you’re enjoying the new FM Sound experi…
- [Dev Log] FM Sound Update in Development! - 13 October 2025
Hello everyone,We’d like to share a sneak peek of our upcoming FM Sound Update, which is currently in development!🎧 Classic YM2612 Sound ReturnsWe’re recreating all in-game tracks using the YM2612 (OPN2) FM sound chip, faithfully capturing the warmth and sharp tone that defined the 8-bit and 16-bit eras.Our goal is not just conversion — it’s a full re-arrangement that honors the original feel while leveraging the expressive power of FM synthesis.The FM Sound Update will be released as a free update for all players.🔊 Current ProgressOPN2 implementation: DoneFM Version Completed: 67%The FM Sound Mode will be freely switchable in the options menu, allowing you to compare it directly with the original wavetable version during gameplay.🧑💻 Developer’s CommentOur biggest challenge is recreating the YM2612’s warm midrange and rich LFO movement.We’re carefully tuning each track to keep the…
- Version 1.12 (gba: 1.01) - 22 May 2025
1. Provide Flash Save ROM file for GBA The GBA version was previously available only as a ROM file for the FRAM/SRAM save method, but we have added a ROM file that supports the Flash save method. If you wish to play the game on a real machine, please write the ROM file that is compatible with your Flash ROM cartridge. 2. Bugfix of GBA sound procedure Fixed a bug that caused incorrect sound effects to be generated at unintended times when running the GBA version on the Revo K101+ compatible device. I have not seen this problem on the actual device and mGBA, but this is due to a bug in my sound driver, not a K101+ special correction.
- Version 1.11 - 1 May 2025
The ROM file for the GBA version included in the purchase bonus has been updated to the completed version (version 1.00). For details of the GBA version, please refer to the following article. https://steamcommunity.com/games/3476490/announcements/detail/547857372725379989 In addition, the display of map data for Area1-1 has been slightly modified. This fix has been applied to both the regular and GBA versions.
- Version 1.10 - 18 April 2025
In this update, we have added a new achievement called Pacifist Clear, which can be achieved by clearing the ZAKO RUSH without hitting any enemies with your ship's bullets or lasers and without making any mistakes. The difficulty of some stages is incredibly low compared to normal play. You may want to try Pacifist Clear for stages that you have difficulty with in the main game play. We have also updated the GBA version included as a bonus to a demo version that allows you to play all phases of Area 1 (1-1 to 1-4). For more information on the GBA version, see the following article. https://store.steampowered.com/news/app/3476490/view/547857372725379988 As a bonus, I also included the source code of the GBA version, which is written in high-level language (C) and is therefore easier to analyze than the Z80 assembly language source code of the original version (VGS-Zero).
- Next Update (version 1.10) Advance Note - 17 April 2025
In the next update, we plan to add the “PACIFIST CLEAR” achievement for clearing the ZAKO RUSH without a bullet or laser hit to the enemies. We will also update the GBA version distributed as a freebie to a demo version in which all phases of Area 1 can be played, and will distribute the source code written in C for the GBA version along with it. For more information on the GBA version, see the following article. https://store.steampowered.com/news/app/3476490/view/547857372725379988
- A first BAF Master confirmed! - 14 April 2025
We found a fierce competitor who cleared first ANOTHER mode! Congratulations! ANOTHER mode has many shoot-back attacks, so it may be easier to attack by utilizing no-shots at key points, as in the video above. (Of course, your score will be lower if you do not shoot any shots...) If you have played ANOTHER mode at least once, you can play ANOTHER mode by entering left or right at the GAME START cursor position on the title screen. That command can also be substituted with a screwpile driver.
- Version 1.09 - 11 April 2025
The following three updates have been made: Window Mode, Window Size, and Scanline settings in CONFIG are now reflected without restarting the application on macOS and Linux. Window size can now be changed by dragging the four corners of the window on macOS and Linux. Updated GBA version to version 0.02 Note that in the case of SteamDeck (BigPicture mode), changes to the Window Mode setting are ignored. The GBA version 0.02 has been updated with simple controls when GAME START is selected. When ZAKO RUSH and LEADERBOARD are selected, the sound test will be the same as before.
- Version 1.08 - 10 April 2025
In-game to allow customization of behavior settings. The following settings can be customized in CONFIG on the title screen: Window Mode: Select full screen or window. Window Size: Select Linux or macOS window size. Scanline: Select ON or OFF for the scanline screen effect. BG Interlace: Select ON or OFF for map interlace effect. BGM Volume: Select the volume of background music from 0% to 100%. SFX Volume: Selects the volume of sound effects from 0% to 100%. Remarks In case of BigPicture mode (e.g. SteamDeck), the setting will automatically change to full screen mode when the application is launched, even if windowed mode is selected. On macOS or Linux, a restart of the application is required to reflect the Window Mode, Window Size, and Scanline settings. The Window Size setting is disabled in Windows. (It will always be ADJUST) If you want to adjust the window size in Windows, switch…
- Next Update (version 1.07) Advance Note - 9 April 2025
Thank you for introducing Battle AirForce on Aktane. https://www.twitch.tv/aktane I can barely listen to English, but thank you for video distributing it in a very enjoyable way. It is very gratifying to see the games being distributed via video streaming services. I like video streaming services such as niconico douga :) The above distribution has identified some concerns that we need to address and we are looking into improving them in the next update. Specifically, we are considering adding a CONFIG item to the title screen, where some settings can be changed in-game. CONFIG will implement the ability to switch between windowed and full screen mode, change window size, turn scan lines on and off, and adjust sound volumes. Even in the current version (1.06), you can use Alt+Enter to cancel full screen on Windows, and config.json on macOS and Linux to set the above, but we noticed that…
- Battle AirForce for GBA - 6 April 2025
Battle AirForce will offer a GBA version of the game as a special offer for purchasers. Of course, there is no need to purchase any add-ons to obtain the GBA version. ROM files in development can be viewed from “Browse Local Files”. Currently, only a sound test is tentatively implemented, where you can listen to music arranged for GBA. It can be started with a GBA emulator (mGBA is recommended). https://mgba.io/ Basically, it is intended to run on an emulator, but it can also be run on a real device if you obtain a Flash ROM cartridge and writer such as gbxcart. We plan to distribute the completed ROM file with an update after its completion. Please wait as it will take a while to complete. The development status is distributed on Twitter.
- Version 1.06 - 2 April 2025
One feature was added and two defects were fixed. 1) Added score resend function The latest scores can be resent by pressing ESCAPE+SPACE in the Global Score Ranking of LEADERBOARDS. For example, you can resend the high score you got deep in the mountains where there is no signal, at your home where the signal is stable after descending the mountain. 2) Fixed a bug that replay downloads always fail. Fixed a bug that caused high score downloads to always fail unless the app was restarted once after registering a high score. 3) Fixed a typo Fixed a typo in the English text when clearing ZAKO RUSH with more than one mistake.
