Attacks can be in different colors, some of which can heal the SOUL or be an obstacle. As the game progresses, new elements are introduced in the form of Attack Types and SOUL Modes. The Player must move the protagonist's SOUL, represented by a red heart, to avoid attacks. During the enemy's turn, they attack with bullet hell patterns. The battle system in Undertale is turn-based. The player, represented by the red heart icon, evading enemy attacks. Undertale is a role-playing game that utilizes many genre mechanics, mechanics, albeit differently.
