
The game features an in-game clock and day-night system that affects the townsfolk and some of the creatures in the field (namely, the Minku - creatures from whom Musashi can obtain berries to increase his overall health stat), as well as forcing the player to pay attention to Musashi's fatigue rating that goes up over time with lack of sleep, which as the name implies will have a deteriorating effect on his combative ability. The two swords are often used in conjunction with certain techniques which are granted by various rescued townsfolk. Lumina is primarily offensive but in combination with the five elemental scrolls, it gains new skills. The other sword is Lumina, which cannot be effectively used in combos by itself instead, it can be imbued with elemental properties from Scrolls. Fusion, which resembles a katana, is used to chain rapid combo hits together and can also be used to absorb Bincho energy, which is a type of magical point system that controls how many spells a player can cast and how quickly, or absorb an enemies' skill.

The two swords he uses have varied abilities and uses. There are also several minigames and puzzles scattered throughout which must be completed to advance the plot.

The player controls the titular Musashi, who fights a variety of enemies using his swords Fusion and Lumina and searches for five scrolls which will increase Lumina's strength and grant him new abilities. Musashi is an action role-playing game, in which the player fights against enemies with a sword in action-based combat, with some role-playing elements.
