A human runs in 5x gravity. Aliens file complaints. Then they all join his workout group. Funny and wholesome HFY.

Aliens bet on a human's death in an arena. The human befriends the predator. A massacre follows.

Aliens soldiers attack a human outpost, but human special forces capture them, show a simulation of their homeworld's destruction, and send them back to overthrow their own monarchy. Psychological warfare at its finest.

A human commander has spent fifteen years preparing for the Galactic Council's inevitable war. When they finally attack, she says "At last" and reveals she's already won without firing a shot.

Alien invaders expect easy conquest but humans use guerrilla tactics, native predators, warfare, and a biolleaching fungus to turn the planet into a weapon. Then they learn the invaders were trying to save everyone.