The Japanese release of SD The Great Battle - Aratanaru Chousen likely provides a complete experience of the game. The Japanese version likely features the full complement of content, including units and scenarios that may have been altered or removed in the localized English release.  Like other games in the series, Bandai was the developer and publisher.

SD The Great Battle - Aratanaru Chousen (Japan)

SD Kidou Senshi Gundam - V Sakusen Shidou (Japan)