90 BUFFALO JILI

"1. Game Rules
Black tiles slide down from the top of the screen;

Players must accurately tap the black tiles;

Tapping a white area or missing a black tile results in an immediate game over;

Speed, time limits, or tile count limits vary depending on the game mode;

The speed increases gradually as the game progresses.

2. Game Objectives
Achieve a high score;

Improve reaction speed and concentration;

Tap black tiles accurately and consecutively to challenge record limits.

IV. Functional Requirements
1. Game Modes
Mode Description
Classic Mode Tap 50 black tiles as quickly as possible; fixed speed; suitable for speed challenges and leaderboards
Endless Mode Infinite black tiles fall continuously; speed gradually increases; score accumulates based on the number of taps
Zen Mode 30-second time limit; tap as many black tiles as possible within the limit; tests rhythm and tapping speed

2. Game Interface
Top: Score display, current mode, pause/return buttons;

Middle: Main game area where black and white tiles fall;

Bottom: Timer, status bar, theme indicators.

3. Key Functional Modules
Module Function Description
Tile Generation Generates black/white tile combinations based on the mode; supports various speed and spacing strategies
Falling Animation Tiles fall smoothly from the top of the screen; supports dynamic speed changes
Tap Detection Detects taps on black tiles; tapping white tiles or missing black tiles triggers a game-over state
Scoring System Points awarded for successful taps; combo bonuses for consecutive taps
Mode Management Controls switching between different rules, time limits, and speeds
Settings Supports theme/background switching, custom sound effects, and score resetting
Game Over Logic Displays score statistics upon game failure; supports replay or exit options

V. Non-Functional Requirements
1. UI Style
Modern flat design style

Black and white primary color scheme; supports switching to colorful or night themes

Large buttons and a clean interface suitable for all age groups

2. Sound Effects
Sound effect for tapping black tiles (customizable piano tone)

Sound effect for successful combo streaks

Game-over/failure sound

Option to toggle mute/sound