Onigiri is a game about pattern recognition and quick reactions. To defeat the bosses that stand between the red Oni and his favorite food, you must carefully observe the behaviors of each boss and use them to your advantage.
In Onigiri, the only way to defeat enemies is to perform a critical strike on weakened enemies. To put them in this weakened state, you must carefully react to the enemy's attacks and perform a parry or an unblockable counter, depending on the enemy's current attack type.