P1: (Undyne) [Red Mode] Z - Fire Normal Spears X - Fire Large Spears C - Fire Homing Spears [Green Mode] ESDF - Aim Spears Z - Fire Spears [Other] Space - Change Soul Color IJKL - Move Undyne P2: (Soul) [Red Mode] Arrow Keys: Move M: Select Button [Green Mode] Arrow Keys: Move Shield [Functions] ITEM: Heals P2. Heals only to Max HP FIGHT: Hurts P1. When their HP is 0, you win MERCY: Creates resolve. When resolve is at 25, you win