A hole in the ground continuously produces a large number of hostile monsters. Out of this hole spring swords of different sizes that attack enemies on the ground and in the air. In the center is the largest size of all swords. You must guard these weapons that can end the menacing creature. The game revolves around controlling the protagonist with the use of screen touches. These gestures allow players to accurately perform attacks and move their target in order to prevent them from reaching the center sword. As a result, players can use their skills to destroy enemies and challenge the boss that appears in each level.

Red Sword starts with the ability to destroy any enemies that show up. You'll have to be careful when this happens; there's a wide variety of enemies with different properties. Nevertheless, players can fully use the power of the sword when the Awakening meter is full. Doing so allows them to easily push back enemies and block their approach. The Awakening bar automatically fills whenever you attack an enemy. Once filled, this automatic activation causes the skill to provide automatic benefits until the bar depletes. Additionally, any character appreciates that they can use different skills to deal damage to enemies. An important note is that this working mechanism is similar to other skills that automatically fill bars— when filled, these alternate skills can automatically be used until the bar empties. Some boss monsters need to be taken care of before the first stage ends. If a player doesn’t, they might miss seeing an announcement that tells them to prepare for a stronger boss. First-stage bosses are designed to break the player’s defensive stalagmite and stop it from blocking the player’s line of sight to the target. At the same time, these bosses can cause significant damage before being defeated by the player.

Red Sword is a tutorial level for the game's eponymous warrior. Subsequent levels present challenges designed to prepare the player for their true quest. When facing a foe, equipped warriors display fortifying effects. Adding weapons to a character makes their swords expand in size, making this an easy convention to employ. Many rewards are earned by damaging enemies in each level. These can include additional equipment and skill books. As for skill books, they can be added to the slots already in use on the character. One interesting point about this game is that multiple skills can be used at once on the bar instead of one at a time. Additional skills and weapons can be added to a character's repertoire by purchasing additional slots. This allows sequential skills to be unlocked.

The protagonist’s fight to keep the central sworduga stationed in the middle raises many points of interest. Players will face off against difficult bosses and challenging monsters that constantly attempt to damage the central sword. When the character meets a certain condition, he obtains a mighty sword that can grow to devastating effect. By constantly attacking, the character can help him enter the Awakening state. This grants him increased offensive capabilities. Constant appearance of powerful monsters leads to the swift destruction of the center sword and the need for increased strength by players. Players constantly charge their energy reserves to perform skills and access new powers. ———