update
Update Z-Annia Space Adventure V 1.6 added an extra mode in the main menu. It is a short stage.
Regarding the save file, in this update we chose to put the version in the menu, and not in the exe, so the saved game is in the ".sav" file, you must find the file on your computer and move it to the folder for this version.
Open the game, save the game and close the game. Then find the ".sav" file and replace it. The folder in the previous version has "V 1.5" and in this latest version the folder will not show the version.
Remember to make a copy of the files before replacing them, as a precaution.
We are sorry for the inconvenience this causes.