This project is from jetpackcrafter and has been abandoned! Whether this project is out of date or its author has marked it as abandoned, this project is no longer maintained. I reuploaded it because it was a really nice plugin.
Bukkit Page: https://dev.bukkit.org/projects/superspleef

Description
Spleef is a popular mini-game in Minecraft where any amount of players can play. The goal of the game is to break blocks underneath your opponents feet to make them fall through the floor. The last one standing would be declared the winner of that Spleef Match. Back then, players that played Spleef would have to help rebuild the floor hand by hand so others could prepare for the next round. This plugin automatically rebuilds the floor and adds support for multiple spleef arenas and also focuses on another part of Spleef, having fun in it!

Features

• You can break blocks instantly with just your hand or a diamond shovel (if you have the permission to have a shovel :3)!
• Automatic Floor Regeneration!
• Multiple Arenas!
• Spleef Regions are the spleef floors and that defines what a player can break and can not break.
• Win Points!
• Rewards for winning Spleef games!
• Lose Points!
• Lobby Points!
• Spectator Point!
• System that kicks you if you stay in an area for longer than 55 seconds (this is known as camping)
• If you create a sign where the first line reads "[Spleef]", right clicking or hitting it will make you join the default arena.
• (To define a default arena use "/spleef setdefault <gameID>)
• If you have tried SpleefUltimate before, the setup is the same!

Commands: https://dev.bukkit.org/projects/superspleef/pages/commands
Permissions: https://dev.bukkit.org/projects/superspleef/pages/commands