Hitofude Hanabi / 一筆花火

Draw a single line with your finger. It becomes a fuse. Fire runs along it, shells burst, and every blast can light another part of your line, so the whole night sky blooms in a chain.

• An 8-night run. Each night adds one new thing: big shell, star shell, lantern, cloud, damp shell, fuse rope, and the grand shell.
• Nights 3 and 6 are boss nights that change how your line works: Straight, Mirror, Dark night, Snap.
• Tonight's real moon phase changes one rule. "Tonight's stroke" resets at midnight (Japan), and everyone plays the same nights.
• Your result reads your stroke style, and you can send a duel link or a replay of your best stroke.
• This is Stage 1, "Riverside Festival". If people enjoy it, new stages with new scenes and gimmicks will follow.

Free, no sign-up. Plays on phones and PCs. Japanese / English.
Made with Claude Code. Music composed with Suno.
Also on the web: https://yuichi916.github.io/hitofude.html

指で線を1本ひくと、それが導火線になります。火が走って花火玉がひらき、その爆発が線の別の場所にも燃え移って、夜空が次々に連鎖していきます。八夜のラン、夜ごとに増える仕掛け、三夜目と六夜目の「大一番」、今夜の本物の月で変わるルール。いまは「ステージ1『川辺の夏祭り』」です。登録なし・無料、日本語／英語。