Galaxy Force II (Arcade)


 * Note: all MAME cheats (not sure about button codes), sound codes, and ROM locations apply to the gforce2 set in MAME

Sounds

 * Note: sound code $80 is a nop (used by the sound driver to indicate that there is no new sound request) and sound code $FF stops sound.

Unused Sounds in the Sound Test

 * Note: for some reason, some of the shorter samples (especially the voice samples), may not play correctly with the in-browser OGG player. You may need to replay the sound repeatedly until it plays correctly, or at worst, download the file and use your computer's media player instead.

Sounds not in the Sound Test
Sounds marked with an asterisk (*) indicate voice samples that appear to be pieces of other samples (be they used or not). You can change the sound ID of the first sound in the Sound Test (Sound Number 1) with the following MAME cheat:  suby.mb@8C54 = ?? suby.mb@8C54 = 81 where ?? is the sound code (in hex, without the leading $). (If you do not already have a MAME cheat file, wrap the above in  ...  and save it as gforce2.xml in your desired cheats directory.)

Hidden Messages
There are two hidden messages in the game, both saying similar things.

The first is easy to trigger: simply hold Shot + Missile + Start during the demo roll without the on-screen control guide (that is, the odd-numbered demos). The message from SEGA and Debutta boys will appear over the Energy meter.

The second does not appear to be accessible in-game. It is stored at in the suby ROM in the game's text format and reads WE ARE DEBUTTA BOYS. Code to draw it exists at in the suby ROM, but does not appear to ever be called (and where it would be called from is unknown). To make matters worse, code at in the suby ROM uses  as a value in a calculation!

Regional Differences
The Japanese versions do not allow you to continue when you die. The international version does, however only on the first five missions (if you die on the last, it's game over regardless of how many credits you have inserted). As a result, some ports (like the Genesis one) do not allow continues while others (like the Commodore 64 port) do.