Mutation Nation (1992). Play online

Summary

Mutation Nation drops you into a grim slum where secret genetic experiments have turned ordinary people into mutant horrors. You choose either Ricky or Johnny and battle through six distinct stages, each ending with a boss that must be taken down before moving on.

The game leans on classic beat‑em‑up combos, jumps, throws and, uniquely, a set of four elemental spheres. A yellow “A” light sphere unleashes a fast twin‑light sweep; the red “B” fire sphere detonates a large explosion; the blue “C” lightning sphere grants temporary invincibility with bolt attacks; and the green “D” wind sphere transforms you into a screen‑spanning tornado. Neutral spheres restore health and replenish super charges, while lacking a sphere forces you to trade life for a rapid flurry.

Playing with a friend in two‑player co‑op feels gritty and loud, and reviewers at the time praised its sprite detail, sound design and the innovative sphere mechanic, even as they pointed out occasional control lag and repetitiveness.

Storyline

Mutation Nation throws you into the year 2050, a city scarred by a rogue biologist’s failed experiments. After the scientist’s lab explodes and he vanishes, a genetic virus spreads through the rebuilt slums, turning residents into savage mutants. Two locals, Ricky Jones and Johnny Hart, return home after a long absence and discover the chaos. Determined to stop the outbreak, they band together to cleanse their hometown.

Along the way the duo battles not only the mutated citizens but also a host of robotic enforcers the mad scientist left behind. Their mission is to contain the virus before it reaches the rest of the nation, fighting through streets overrun with both flesh‑and‑metal foes. The game’s fast‑paced arcade action pits the youths against relentless waves, emphasizing quick reflexes and cooperative play.