The Tournament to Stop The Apocalypse, A Hololive Fan Story

Regression

Roboco smiles as the tanks and planes fly away, and Fauna returns to the ground as the animals leave the arena. Fauna takes a bite of the apple and tosses it aside as Roboco throws off her draped flag, the two lower themselves to the ground and prepare to engage. Roboco emits purple flames form her back as she charges forward and Fauna slams her hand onto the ground. Wood amass forward toward Roboco who just plows through them as she turns up the heat. She shatters through and reaches Fauna, she launches a kick with more jet engines on the back of her heel propelling her foot. Fauna quickly puts up a guard and grows a layer of wood and another shell on her arm to tank the hit. She quickly returns with a kick of her own that Roboco blocks with her arm as well.
"I see, you're not primarily a head on fighter now are you, 'god'" Roboco remarks, "You don't know anything yet 'human'" Fauna replies. From Faunas leg, a branch extends wrapping around Robocos arm. Roboco noticed and heats her arm up which burns the branch away and burns Fauna. Fauna quickly swings her leg off Robocos arm and Roboco leaves a ball of energy at her position and twists her body around Fauna and propels her elbow back to strike Fauna in the back of her head. She leaves behind another ball of energy behind Fauna and leaps above Fauna to leaving another ball while also placing two others on either side of Fauna. She lands at a distance and closes her arms together which attracts each orb into Fauna, creating a large explosion. Roboco quickly opens two slots on her shoulder blades and two arching machines come out and fires rockets at Faunas location. Then, Robocos hand opens up and folds around her wrist, exposing a spinning hole that begins to glow. Panels on Robocos arms open as steam leaks out of her arm and she fires a beam at Fauna. Suddenly Roboco jumps into air as Fauna's arms reach out of the ground and attempt to grab her.
Roboco reforms her hand and her other hand opens up, revealing a multi barreled rotating gun, another panel opens and a magazine with a belt of bullets comes out as Roboco fires the gattling gun. Roboco lands on a tree and scans the area for Fauna and suddenly leaves fall Infront of her face. She turns around to see Fauna in the tree. Her eye quickly shifts and a beam fires slicing through the tree. Fauna again vanishes and reappears behind Roboco. Fauna wraps her arms around Roboco and puts her in a chokehold. Roboco heats up her body but Fauna doesn't seem fazed as she sprouts twigs from her body that enter Roboco through small openings.
"S-15, Your body has been compromised!" Iris says, "yeah I noticed, we're engaging claymore tactic!!" Roboco replies.

"It's over." Fauna says as the twigs bury deeper, but suddenly, from every opening in Robocos body, fire blasts out, disintegrating the twigs and pushing Fauna to retreat into the ground again.
"Iris, how did she take that heat?!" Roboco desperately asks while scanning the area,
"She coated her body in a shell that can withstand such a heat." Iris explains "oh of course she can do that!" Roboco says.
Suddenly a leaf flies past her. It slices through her cheek and more leaves fly at her. Panels on her shoulder open and five small guns deploy, shooting the leaves before they reach her.
Thick Branches sprout from the ground and wrap right around Roboco. Fauna surfaces from one of the branches and her hand is covered in fur and claws extend as she slashes down at Robocos face. Roboco's eye shifts again and a laser fires, slicing through Fauna's hand.

Roboco jumps back and Fauna stares at the remaining half of her hand, "How's that feel?" Roboco remarks, "Silence ingrate, you have defiled the gifts I gave to mankind." Fauna says as branches covered in blood sprout from her hand. They twist and contort to eventually form a skeleton, then they grow leaves that resemble the flesh of a hand and turn the same shade. She then clenches her hand and extends her hand. She takes her other hand and starts to crack her knuckles. "Shall we continue?" Fauna says as she disappears into the ground. "Alright then..." Roboco responds as she yanks a knife out a sheathe on her shoulder.

Roboco looks around and suddenly hears a branch snap, she turns around flipping her knife between her fingers and holding it with a reverse grip, and slices upward, but the strike doesn't hit, as there's nothing to be seen. "What!?" Roboco shouts as she puts her guard back up, "Iris, I sensed her behind me... I've already scanned her height and I should've sliced her directly through her neck... did what she did earlier cause malfunctions? I need diagnostics now!" Roboco asks Iris, within her conscience, "you're functions are all normal, and the scan wasn't faulty, I have no idea what caused it or what she did though."
Iris explains, suddenly Roboco swings again but at nothing again, "I aimed for her stomach that time... but again she wasn't there..." Roboco thinks to herself. The ground shakes as multiple trees sprout and cover the entire arena, creating a forest.