Largely retelling the story from the SEGA CD game, Silpheed Alternative puts the player in control of a small space fighter, part of the Gungnir Squadron, stationed on the United Earth Command carrier ship Asgard, as it tries to retreat towards Earth controlled territory after an surprise attack from an unknown alien species.
Miscellaneous
The game has been updated to utilize the physical controls of the Xperia Play series of handsets. The Japanese and English versions have also been folded into both regional releases of the game.