In the broken Mushroom Kingdom of the Alternate Timeline, Mario sat in despair, haunted by the memories of his failure. His mind replayed the moment when Alternate Luigi was taken by the clutches of Alternate Mario, plunging the kingdom into further darkness. this caused a strong pang of regret within him. He blamed himself, believing he was responsible for the tragedies that had befallen his friends.

Engulfed in his swirling thoughts, Mario was abruptly shaken from his melancholic reverie by the sudden appearance of a young girl before him. He stared at her wide-eyed, taking in the sight of her angelic form adorned with obsidian wings. But there was something familiar about her, something that tugged at the edges of his memory. Mario's heart skipped a beat as he was convinced this ethereal figure was Hildegard—the very person whose demise had triggered Alternate Mario's descent into darkness, leading to the Mushroom Kingdom's destruction.

With tremors coursing through him, Mario approached the enigmatic girl, seeking an explanation for her presence. Hildegard beckoned him closer, her voice carrying a strange mix of solemnity and urgency. She revealed that the same events that had unfolded once before were destined to repeat themselves. As dread washed over him, Hildegard divulged the second and final option to vanquish Alternate Mario—a direct confrontation.

Such a simple solution provoked irritation in Mario's heart, for he and Alternate Luigi could have attempted this approach in the past instead of inadvertently granting their adversary immense power via the activation of the Nemesis Trigger. Frustration churned within him as he questioned why that alternative had not been considered in their earlier battles. Hildegard anticipated his uncertainty and responded softly, explaining that Mario's obliteration was inevitable if he had chosen such a path. Moreover, Alternate Luigi would still have suffered the loss of the Tanooki Flower, their fused hope cast aside.

Calming himself, Mario pondered Hildegard's words. Her guidance led him to understand that merging two different power-ups—the White Tanooki Leaf and the Golden Flower—was the solution to their predicament. Motivated by hope, he realized that the piece he required at present was the White Tanooki Leaf. Miraculously, as Mario considered his next steps, Hildegard generously gifted him the missing power-up, sparing him from further lamenting over Alternate Luigi's absence throughout their impending quest.

Emerging as the fusion of prowess and determination, Mario swiftly merged the White Tanooki Leaf with his existing Gold Flower, forging an extraordinary creation—the Golden Tanooki Flower. The air crackled with incredible energy as he adorned himself with the newfound power, immediately soaring high above the desolate Mushroom Kingdom. His sights were firmly set on one destination—confronting Alternate Mario with the resolve to bring an end to the darkness that had befallen their world.

With a final farewell echoing in his ears from Hildegard—"See you later, in your Timeline I mean"—the screen faded to black.