Tetris JS: PLAY HERE

To do:

• Implemented Leaderboard
• Implemented Hard Drop feature
• Implemented Hold feature
• Implemented Pause/Resume feature
• Improved scoring and leveling system
• Added column highlighting
• Added visual instructions & on-screen keys mirroring
• Added in-game timer
• Added Restart option
• Completely redesigned the GUI
• Implement Super Rotation System (SRS)
• Add 40-line Sprint mode
• Add 2-minute Ultra mode

Bugs:

• If the 'Submit Score' button is clicked multiple times in quick succession, it'll post multiple entries into the database. [Fixed]