一筆花火

Draw a line with your finger, and it becomes a fuse. Fire runs along it, fireworks burst open, and the explosion spreads to other parts of the line, creating a chain reaction across the night sky.

• An eight-night run. Each night, one new mechanism is added (large ball, thousand wheels, lantern, cloud, wet ball, rigging rope, one-foot ball)
• The third and sixth nights are "grand finales." The way you draw the line changes: straight, mirror, dark night, instant
• The shape of the real moon tonight changes one rule. "Tonight's single stroke" changes at midnight every night, and everyone plays the same night together
• The results show "brushstrokes" from the shape of the line. You can send links to compete on the same night, or replay links of the best single stroke
• Currently "Stage 1 'Summer Festival by the River'." If there's a response, we'll add the next stage with changed scenery and mechanisms

No registration needed, free. Play directly on your smartphone. Japanese / English.
Made with AI (Claude Code) and two of us. BGM composed with Suno.