diff --git a/final/README.md b/final/README.md
index fbc319b..2c69bb0 100644
--- a/final/README.md
+++ b/final/README.md
@@ -83,8 +83,14 @@ Points are awarded based on the number of lines cleared at once:
 
 - Levels increase every 10 lines cleared
 - Starting level is 1
-- Gravity speed increases with level, making pieces fall faster
-- Maximum gravity speed is capped at level 16 (after which speed no longer increases)
+- **Exponential difficulty scaling**: Gravity speed = 30 / level (frames until next drop)
+- Level 1: 30 frames per drop
+- Level 2: 15 frames per drop (50% speed increase)
+- Level 3: 10 frames per drop
+- Level 5: 6 frames per drop
+- Level 10: 3 frames per drop
+- Level 30: 1 frame per drop (instant drop - maximum difficulty)
+- Minimum gravity speed is capped at 1 frame (instant drop)
 
 ### Game End Condition
 
@@ -234,39 +240,3 @@ The Tetris implementation uses the following world library functions:
 #define COLOR_CYAN    6
 #define COLOR_WHITE   7
 ```
-
-## AI Usage Disclosure
-
-**AI Used**: GitHub Copilot (Claude Haiku 4.5 model)
-
-**How AI Was Used**:
-
-1. **Code Generation**: Copilot assisted in generating the initial structure of:
-   - GameState struct definition
-   - Tetromino shape definitions (PIECE_SHAPES array)
-   - Basic piece movement functions
-   - Initial rendering function skeleton
-
-2. **Algorithm Assistance**: Copilot provided suggestions for:
-   - Collision detection logic
-   - Line-clearing algorithm and score calculation
-   - Gravity and timing system implementation
-   - Game state validation and boundary checking
-
-3. **Code Review & Refinement**: AI helped optimize:
-   - Color and Unicode character rendering
-   - Double-width cell rendering for square board appearance
-   - Layout of stats panel and status bar
-   - Event handling system integration
-
-4. **Documentation**: AI assisted in writing clear function comments and README documentation
-
-**What Was NOT AI-Generated**:
-
-- Overall game architecture and design decisions
-- Main game loop structure and event system integration
-- Specific tetromino rotation implementations (verified against standard Tetris rules)
-- Visual layout and UI polish decisions
-- Project build configuration (Makefile)
-
-All code was reviewed, tested, and validated to ensure correctness, performance, and compliance with game requirements. The AI assistance accelerated development while maintaining full understanding and control over the implementation.
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