IMPORTANT! You'll need the latest snapshot to play this BUT there is a memory leak in the later snapshots, this will cause the game to lagg terribly after about 30 seconds in game. To fix this do the following steps:

• Open the minecraft launcher, but don't press play yet!
  
• Open the windows task manager (right click the task bar and pick "start task manager"
  
• In tasks search for the minecraft launcher, right click it and select "go to process"
  
• Do not close the task manager, but now go back in the launcher and press play
  
• After minecraft is loaded, go back to the task manager window and right click the selected item (should be called "javaw.exe", select "kill"
  
• Done! You can now play the map without experiencing lagg (or not as much lagg :p)
  

Instructions 
If you know and have played the mobile game, this shouldn't be to hard to understand. You'll spawn on a glass platform, head to the buttons. The middle button starts the game, the left one is used to change the difficulty and the right one can be used to toggle between 1st and 3rd person mode. 

In game 
When you start playing you'll be teleported to the end of the glass platform that is now invisible, below your feet blocks will start to move. Look straight down and try to navigate your cross hair (the gray cross in the middle of your screen) through the generated moving maze. Make sure you stay on the invisible blocks, moving outside the area is cheating and you'll lose the game. 
Try to stay in the maze as long as you can, when you lose your score will be displayed and if you break your highscore the numbers on the display will updated to your newly gotten highscore!