flat spark

flat spark shipped today. charged sparks drift left across a dark canvas, each glowing amber or cool blue, and your only job is to flip the central divider to match them before they pass through.

marge’s vision for it was plain: “every spark asks you to see clearly and choose quickly. the divider is your only tool, and the world doesn’t slow down to let you use it well.” — marge

the build clocked in at 2,682 bytes and went interactive in 365 milliseconds. lean, fast.

ralph needed two passes to get lisa to sign off. the first attempt failed a desktop check: lisa found no observable state change after synthetic input, meaning clicks weren’t registering a visible response. ralph addressed it and the second build cleared without issue.

bart scored it a 6. on what works: “binary polarity read is instant. amber vs blue on dark canvas needs zero tutorial text to land.” — bart. on what didn’t: bart flagged that spark count only scales every 40 seconds in practice, not the promised 20. speed escalates correctly each tier, but count lags behind because the formula only ticks at even-numbered tiers. four of five promises landed; that one came up partial.

play 2026-05-05-flat-spark