Have you wanted to play tnt run, but either can't, or don't feel like installing the required Bukkit plugins and such? Have you seen a video about a game that uses the same idea, but does not have a download? Do you want to play a "spleef" like mini-game without needing to click?
Look no further! I had the same problem as you. I wanted to play tnt run after seeing many YouTubers playing it, but I was disappointed when my map just blew up. In order to play it, you need to go through a pretty large list of thing to to before it will work properly. Later, I saw a "Tr0n" video that had the same tnt run concept but did not need any crazy tweaked settings. I was once again disappointed, as there was no available download. Out of frustration, i created my very first attempt at a map, this.
This map is a 2-4 player mini-game that works by having a large field filled with stone pressure plates on top of gravel which is on top of tnt. This means that as you are walking over it, the ground crumbles away. I have added a speed 2 potion, which makes the game more intense and helps to re-create the "Tron" feel. The goal is to make the other players fall into the void from the holes you leave in your path.
This map was created entirely by me.
You are more than welcome to make YouTube videos with this map, but please link back to here or if this site is down, the minecraft forum page here http://www.minecraftforum.net/topic/1843215-tron-lightcycle-battle/ . Share with your friends, leave feedback, and enjoy!
NOTE: The hole in the field seen on Schemagic DOES NOT exist on the actual map. Also, Schemagic will give away major spoilers and secrets.


SETTINGS:
Command blocks:true
Gamemode:1
Difficulty:peaceful
VERY IMPORTANT: YOU WILL NEED TO DELETE AND REPLACE THE WORLD FILE EVERY TIME YOU PLAY. If this gets popular, I might try to make an update where this is not necessary.