Patch Notes - Major Update: Seal Stone System

🔮 New System: Seal Stones The time-based progression system has been completely replaced with the Seal Stone system 5 Seal Stones spawn sequentially across the stage — find and destroy them to progress Each Seal Stone destroyed lifts the darkness, making the world brighter A Mini-Boss spawns at the location of each destroyed Seal Stone Destroy all 5 Seal Stones to trigger the Final Boss 💀 Boss Rework: Bullet Hell All 22 bosses completely reworked with ranged barrage attack patterns Melee attacks removed — bosses now use bullet hell-style projectile patterns New barrage types: Aimed shots, Fan spreads, 360° Radial bursts, Lasers, Markers, Walls, Spirals 3-Phase boss structure: P1 (100~60%) → P2 (60~30%) → P3 (30~0%) P3: Boss activates a shield and summons 2 elite guardians — defeat them to break the shield Difficulty scales automatically by stage position, chapter, and phase 📷 Camera Zoom Camera zooms out during boss battles for better visibility Zoom level increases with each phase (P1 → P2 → P3) Camera returns to normal after boss defeat 💰 Gold Economy Rework Gold Goblin event removed Normal monsters now have a 1% chance to drop 1~2 gold Elite monsters: 10% chance for 3~5 gold Seal Stone destruction and Mini-Boss kills reward gold based on progression 🎨 Visual Improvements All stage backgrounds replaced with high-quality illustrated art (no more pixel tile maps) Player weapon VFX brightness reduced for better combat visibility New Seal Stone HUD — counter (0/5) and HP bar displayed at top center 🐛 Bug Fixes Fixed Ch3 stage index conflict causing save data corruption between Ch1 and Ch3 Fixed hidden stage unlock conditions being shared across chapters Fixed Ch3 difficulty calculations using Ch1 values Added Ch1 hidden boss (Chaos Knight) — previously reused Demon Lord 🔧 Other Changes Korean language support removed Removed time-based spawning (10-minute timer, Final Wave, timed mini-boss/elite spawns) Elapsed time display remains for tracking purposes New debug cheat: Backquote (`) key instantly destroys active Seal Stone