KART
"How is this part of hero training?" Iida asked as he squeezed inside the kart.
"Who cares?" Kaminari shouted. "This is amazing!"
Aizawa glowered at them all. "Once you're done fraternizing and lollygagging, you may go anytime you wish."
Everyone's heads shot up to the glowing green light and the rapidly vanishing exhaust smoke of Izuku's and Bakugo's karts.
Kaminari punched it, and his kart immediately stalled out. He frantically slammed the gas pedal as everyone passed him by. Further down the track, everyone ran into glowing boxes. Mina got a greasy banana peel, grimaced at its slimy texture, and threw it away. Todoroki ran over it, spun out, and flew into a ditch. With a shrug, he pulled out the soba he got from the box.
Iida got a mushroom. "Drugs! Egads, what is this school thinking? The only boost I need is my legs!" Iida stuck his legs out of the car. Recipro Burst sent him flying across the track, smashing karts aside and churning through off-road shortcuts. He hit a ramp, flew off into a pond, and Aizawa fished him out with his scarf.
Aoyama grabbed a star, and he was suffused with iridescent light. "Behold, monsieurs! My beautiful twinkle! Nothing can stop me now!"
Mineta grinned. "That's what you think. Sticky bomb attack!"
Mineta flung spheres behind him. Aoyama ran one over, and it burned to dust. Mineta frantically threw more, crying, as Aoyama approached with the slow, impending doom of the heat death of the universe. When Aoyama's kart tapped his, Mineta exploded into the air.
Further down the track, Izuku and Bakugo jockeyed for first place. Izuku gave his competitor a menacing green Italian glare, then slowly crept back. Bakugo's instincts prickled. Machines never gave up, and always went for the optimal strategy. Then he heard it. A hiss in the air. A blue specter of death hovered over his tank.
"Not today, bitch!" Bakugo raised his hand high and smote the blue shell from the sky with his Quirk.
"Hah! Nothing can stop me now!"
Lightning plunged from the sky. Every kart struck spun in place and shrunk to miniature proportions. Kart fixed, Kaminari raced over the competition, crushing them as he went.
"Hah! Who's laughing now?" He jeered at his tiny classmates.
The finish line hung just ahead of Kaminari when he heard an engine roar. He glanced behind and went pale as Izuku's oversized, grinning face shot towards him like a rocket.
"Beep beep," Izuku said.
Kaminari's kart exploded. Bakugo valiantly charged forward, blasting behind him for every extra bit of speed, but Izuku swept through the finish line. As he growled in frustration, Aizawa said, "Now that the practice run's over, it's time for the real race track."
The ground fell away, the track turned into rainbows, and the entire area undulated gently in the zero-g environment.
Ochako, feeling the lack of gravity, bent over the side of her kart and added more rainbows to the track.
497
And now I'm imagining Mario Kart with each character having their own special move. I can't tell if it's brilliant or a terrible idea.