The Floor is Lava. Simple.

This plugin is meant for usage on private servers with friends, therefore its rather simple in nature.
Upon touching grass, TNT will be spawned at the player.
Commands:
/tfil start: Enables the minigame
/tfil stop: Disables the minigame.
/tfil: show command list

NOTE: The TNT spawned upon touching grass will both create an explosion that WILL damage the world and also create fire around the explosion. Do not use this on a world that you consider important.