Show HN: Multiplayer Tetris in Mootools, HTML5 and NodeJS (Nearly finished)

It's been about 3 weeks since I dusted off the Multiplayer Tetris game that me and a buddy wrote A year ago and that's been collecting dust since then.

A lot of after work and weekend hours have been pooring into the project since then, and I think it's about time to show the progress

What's been done:

  - Preloading
  - Completely rewrote layout for desktop / tablet browsers using css3 :target.
  - Usage instructions added 
    (one of the comments I got: "Yeah, it works, but how do I play?" )
  - Sending all powerups to other users now works
     (click on another user's playfield to send powerup)
  - Game over implemented serverside so a mulitplayer game can end. 
  - Now works on tablets with touch input.
     swipe left/right/down for controls, tap another user's playfield for sending powerup. 
     Tap the powerups bar to apply to self.

What's todo:

  - Fix some last bugs in the tetris engine 
    ( Blocks can still move up in rare cases,
      T-Spins don't always work in all directions )
  - Global online highscores
  - 2 player mode with an direct invite url
  - Finishing touches, Package the app, and deploy!
  - Phone UI in the works

Please come and play and try to overload my little gameserver. If no users are online don't forget to try a game against yourself by opening 2 browser tabs!

Link: http://goo.gl/RJa1f