I don't get your question.
first you have to get 10000 kills then get 500 melee kills
A melee kill is the act of killing someone without the use of a gun. Weapons used in melee are swords, knives, bats, etc.
you have to have 500 melee kills. when you reach 500, go to the next area and your pipe auto-changes to it. easiest way to get it is to stand by a teleporter and let 4 guys spawn, and then kill them all with the pipe. if you are playing a hacked version, you'll most likely one hit with the pipe/sword, making it much easier.
melee or lots and lots of ammo
bronze dragons
Yes you can how else would you kill them without hitting them?
sneak attack with a strong melee
kill 250 people with melee (knife, tactical knife)
The hammer thing, or if you get Entei out of a Pokeball =P
Go to Gameplay Settings by pressing the Menu button, and see where melee is on your control scheme is Halo.
Choose a melee mode such as cruel melee, then right click and a settings thing will show up right click to the right of it and another will show up left click on the word "forward you will pass to burly brawl melee. Now choose a character start the match and do the right click thing again and you will verse cloud beat him then do this again and when you verse cloud do the right click thing again and you will verse another character.
XBOX - Press Y PS3 - I think you press Triangle