The latest version of the game has the ability to update software via SDCARD installed in the brain board. Remove the brain board's SDCARD to copy the below update.bin file to it. Then reinsert the SDCARD back into the brain board and power the game on. The game will detect the file and ask if you wish to update. Use the two small buttons below the small screen on the brain board to select "yes" then "ok" (right button first, then left). When it finishes, it will reboot showing the new version.
Download the update.bin file from here.