The ROM file for the GBA version included in the purchase bonus has been updated to the completed version (version 1.00). [previewyoutube=xKoPzvr8M2o;full][/previewyoutube] 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.

[ 2025-05-01 21:55:36 CET ] [ Original post ]

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). [previewyoutube=9B3JgU68Oos;full][/previewyoutube] 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).

[ 2025-04-18 00:37:05 CET ] [ Original post ]

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

[ 2025-04-17 06:43:43 CET ] [ Original post ]

We found a fierce competitor who cleared first ANOTHER mode! Congratulations! [previewyoutube=Cqqk-HVXgHU;full][/previewyoutube] 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.

[ 2025-04-14 02:58:44 CET ] [ Original post ]

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. [previewyoutube=97BxbqlGuDo;full][/previewyoutube] When ZAKO RUSH and LEADERBOARD are selected, the sound test will be the same as before.

[ 2025-04-11 22:11:35 CET ] [ Original post ]

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 to Window mode and drag the four corners of the window.

Note that because the vertical interlacing of the map was unexpectedly unpopular, the default setting value was turned off. We do not know statistically how many people find this feature desirable, so if you have any comments on this change, please feel free to post a discussion or review.

[ 2025-04-10 06:39:33 CET ] [ Original post ]

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 it would be more helpful to be able to set in-game. If you have any other ideas that you think we should address, we would appreciate hearing from you. However, I plan to keep the hardness of the penguin XD

[ 2025-04-09 09:04:21 CET ] [ Original post ]

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.

[ 2025-04-06 07:35:54 CET ] [ Original post ]

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. [previewyoutube=7iCVQfCjoiw;full][/previewyoutube]

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.

[ 2025-04-02 13:02:25 CET ] [ Original post ]