777 Mical Qxin

"## Basic gameplay
- The blocks will fall one after another from the top of the screen, and players need to arrange them at the bottom through operations.
- When a row is completely filled with blocks, the row is eliminated and points are awarded.
- The game ends when the blocks can no longer fall and stack to the top.

## Features
- Pixel retro style UI: All interfaces, buttons, dividing lines, and pop-up windows are in pixel style, giving it a nostalgic feel.
- Multiple skins and backgrounds: Supports multiple sets of block skins and multiple gradient backgrounds, switch at will.
- Hell Mode: Reverse operation and inverted display, extreme challenge.
- Elimination Animation: There is a cool pixel animation for each elimination.
- Leaderboard: Supports normal/hell dual mode leaderboard, automatically records high scores.

## Operation instructions
- Move left/right: Click the ""<"" or "">"" button.
- Rotate: Click the ""R"" button to rotate the current block.
- Accelerated Fall: Click the ""V"" button to make the block fall quickly.
- Pause/Resume: Click the ""||"" button to pause or resume the game.
- Restart/Return to Homepage: After the game is over, you can choose to restart or return to the homepage.

## Settings and customization
- Skin Switch: Select different block skins on the settings page to experience the colorful pixel style.
- Background switching: A variety of gradient backgrounds are available, and the preview area displays the effect in real time.
- Next Block Preview: The next block preview function can be turned on or off.
- Settings auto-save: All settings are automatically saved and automatically applied next time you enter.

## Ranking description
- After the game is over, the scores are automatically recorded to the corresponding mode leaderboard.
- The rankings are divided into two categories: "Normal Mode" and "Hell Mode".
-Only record scores with scores greater than 0, and automatically generate English nicknames (such as Tetris_AB12).
- Ranking data is saved locally and persistently. "