As the bell rings, two fierce fighters step into the arena. Frisk/Chara and Undyne/Undyne the Undying are ready to do battle. Undyne charges forward, summoning spears from the ground to attack Frisk/Chara. But Frisk/Chara is too quick, dodging and weaving through the barrage of spears with their agility and speed. With a swift motion, Frisk/Chara draws their knife and charges at Undyne. Undyne tries to defend herself with her guard, but Frisk/Chara's knife pierces through, dealing a heavy blow. Undyne falls back, but instead of staying down, she transforms into her Undying form, doubling her stats and regenerating her wounds. But Frisk/Chara is not intimidated, they too can transform into their stronger form. With their double stats, they charge at Undyne once again, their heart locket glowing with power. The two combatants clash, exchanging blows and dodges. Undyne's spears come fast and fierce, but Frisk/Chara's agility and defensive locket allow them to hold their own. In the end, Frisk/Chara deals the final blow, their knife plunging deep into Undyne's chest. Undyne falls to the ground, defeated but not without a fight. The reason Frisk/Chara won is due to their high agility and speed, allowing them to dodge Undyne's attacks and strike effectively with their knife and heart locket. Their defensive properties also helped them withstand Undyne's attacks. Though Undyne was a formidable opponent, Frisk/Chara's determination and skill allowed them to emerge victorious.