Alien Firework Maker

An alien craftsman builds fireworks… to attack Earth.

They saw humans screaming under the summer night sky and assumed it was pure agony. So they reverse-engineered the “scream weapons,” packed colored stars into shells, and started launching them at the planet.

Design your own firework shell:

• Choose a base pattern — Kiku (chrysanthemum), Saturn, or Willow

• Place colored stars by tapping

• Drag to adjust, long-press or use delete mode to remove

• Launch a triple volley and watch them bloom

Score is based on star count, color variety, placement balance, and density. Get concrete advice after each launch, chase dynamic challenges (70 → 80 → 90 → 95), and climb ranks from “Scream Collector Novice” to “Universe-shaking Scream Collector.”

The Earthlings are actually thrilled. The alien has no idea.

Mobile-friendly · Touch controls · Japanese / English toggle · Single HTML file · No install

Made for short, repeatable sessions. One more shell. One higher scream level.