The video on the top is a remix of Yoshi Star Galaxy music and Super Mario World. I think it goes amazingly well with this one-shot! Enjoy!
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"Have you ever been in the volcano?" Violet asked Mario.

"Um...I think so...did-a we?" Mario turned to Yoshi.

The green dinosaur nodded,"Yeah! It was full of starbits! Lately though, it doesn't want to erupt..." 

"So...we're here to fix it." Violet said.

Mario nodded,"How do we get up-a there?"

"Here!" Yoshi said.

He placed a ladder on the volcano and was already climbing. Violet shivered a bit as she saw how high the ladder was.

"Don't worry Vi! At least it's not-a parkour!" Mario assured her.

He got on the ladder and stopped at the top, waiting for his sister.

She climbed steadily and slowly, and sighed a sigh of relief as she landed on hard ground inside the volcano.

"Don't be relieved just yet..." Yoshi said.

Violet looked down to see that the volcano was set up like parkour, with platforms and poles....and ladders.

Violet felt light headed and didn't notice she was falling back until Mario caught her.

"Now don't get too scared Vi, we gotta fix the volcano."

"Yeah, but doing parkour that's taking you downwards is crazy!" Violet said,"Even worse than ladders!"

"We'll just have to try!" Yoshi said.
•••

"Nope nope nope! I can't make it!" Vi yelled.

"Yes you-a can!"

Violet grunted as she climbed up the pole to get to the next platform. She barely made it.

"Gosh..." She said.
•••

"Wait...so the whole time...it was just because...a simple star bit was stuck in the..." Violet looked furious.

"We should-a go now! BEFORE IT ERUPTS ON US!" Yoshi yelled.
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So...y'alls can request a one-shot scenario for me to make if ya like! ^_^