- Recreate 16-bit LucasArts portraits for Saskia, Maja, and Miriam matching real-life source photos
- Add 3 sisters showcase in Act II intro modal and golden portrait badges on goal platforms
- Fix Act III background scaling: lock scene to 9:16 aspect ratio with medieval ornamental side borders and corner brackets
- Ensure 100% full background visibility with zero cropping and lock hotspot buttons to image features across all screen sizes
- Fix cache issue by referencing schankraum_v5.jpg with cache buster query
- Re-position NAT button to feet (top: 70%) and Mario button to knees (top: 79%) to eliminate face occlusion
- Add global settings & pause modal (gear icon) with mute and reset, removing obsolete bag button
- Extend Prologue with Flo Maier (castle fire game over & Löschzug restart) and Viktor (vampire bite game over & Knoblauch restart)
- Rebuild Akt II as 3-level vertical Doodle Jump climber to rescue sisters Saskia, Maja, and Miriam with custom pixel portraits
- Update Akt III Schankraum with seamless oak floor, double-tap 'Luke zum Party Bunker', duel intro modals, and Hansi's departure in Hinterland
- Rebuild Akt IV as 3-lane medieval Guitar Hero rock concert with live crowd meter, combo multipliers, and Hansi duo
- Update AGENTS.md architectural documentation and playtest test suite