Tag Signal v2 is live.
The first pass proved the block could travel: one script tag, scoped CSS, a playable canvas, and basic event forwarding. V2 makes the game more worth embedding. The HUD now tracks score, combo, clock, and best. Gold signal pickups extend the round and lift the combo. Heat cells accumulate locally so a host site can see where players spend time without adding identity or cross-site tracking.
The event stream is versioned as 2.0.0 and now includes signal events alongside impression, start, tag, and finish. Local storage uses tag-signal-events-v2 and tag-signal-heat-v2; sites can still pass data-endpoint when they want server-side campaign analytics.