Halloween - Randomly scares your players!

This the 1.8 version!!
for the 1.9+ version Click here
Hello

Welcome to my first public release. This is a plugin which will scare your players every 10 minutes.

Features:
- Scare players with scary sounds and blindness
- Scare players with a damage hit (- 0 damage)
- Scare players with a scary mob (bat, passive invisible zombie with pumpkin head, passive witch)
- When you hit a mob spawned by this plugin you'll get scared as well.
- Support to disable certain worlds
- Support to add world via ingame command
- Support of World Guard
- Support to add region to config via ingame command
- Disable functionality ingame
- Disable scare function for certain players by giving a permission

The mobs will get removed after 30 seconds, so you don't have to worry about lag. If the server restarts they will be removed one minute after restart.

Commands:
- /scareworld <add/remove>: Adds/removes your current world to the EnabledScareWorlds.
- /scareplayers <enable/disable>: Enables/disables functionality this plugin.
- /scareregion <add/remove>: Adds/removes your current region to the EnabledScareRegions
Permissions:
- halloween.noscare: Players with this permission won't get any scare effect!
- halloween.worldmanage: Players with this permission will be able to add/remove enabled worlds.
- halloween.manage: Players with this permission will be able to toggle the functionality.

Config.yml

#Enables or disables the updatechecker
UpdateChecker: true
#Permission to not get scared
NoScarePermission: "halloween.noscare"
#Permission to add/remove enabled worlds
WorldManagePermission: "halloween.worldmanage"
#Permission to toggle the fuctionality
ToggleScarePlayerPermission: "halloween.manage"
#Custom name for the ScareMobs
CustomNameScareMobs: "Trick or treat"
#Delay for the scare effect to take place.
ScareDelay: 240
#Enables/Disables ScareEffect
ScarePlayersEnabled: true
#Enables/Disables World Guard support
WorldGuardSupport: false
#All enabled worlds are listed here
EnabledScareWorlds:
#All enabled regions are listed here
EnabledScareRegions: 
- All

This plugin has been created for https://drcnetwork.com
Suggestions
Let me know in the discussion or reviews :)

Have fun!