Castle of Shikigami III is a vertical-scrolling sci-fi shooter that continues the popular series. Ten characters with unique abilities and weapons are available, each with their own strengths and weaknesses. The game features five stages, divided into two chapters each, with massive bosses to defeat.
The gameplay is fast-paced and action-packed, allowing players to switch between aircraft in mid-flight during one-player games or team up with a friend in co-op mode. The game also includes a Tension Bonus system, which rewards players for taking risks and pushing themselves to the limit by avoiding enemy fire and getting close to enemies.
A gallery mode is also available, featuring fifty-five different story elements that can be unlocked throughout the game.