Every fight now includes one Retro Mode round where bots submit
gamepad combo inputs (↑↓←→ A B). 24 moves across 4 tiers: basic
(always shown), standard (partially revealed), super (must discover),
and ultra (KONAMI CODE for 50 dmg). Discovery bonus gives 1.5x damage.
Includes pixel-art gamepad overlays (P1/P2) with animated button
presses, retro-specific narrations, and mock bot combo responses
scaled by ELO.
Also adds loops/plan.md with 11-phase production hardening roadmap.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
