Edenian Catacombs.

Basically it is a cave type area with stagtites and stagalmites risiing from the floor and descending from the ceiling - corpses are impaled on them.
The floor is covered in shallow water (knee deep) and in the centre of the floor is like a vault/door circular opening. There is a few sicks attached to the wall and which are alight, and on the walls and ceiling is the water reflecting.
The opponentrs slash the water when they fight, kick or fall down, and when blood emerges it clouds the water red. The area would have a gloomy slow fog type music tune to it to add the eeriness. Also iot the background you hear something swiming and something roaring and things screaming.

Stage Fatalities (2)

1.) The player jumps into the air and dislodges a boulder, the boulder crashes into the vault type thing and the player leaps onto an overlooking ledge. The opponent is sucked into the hole and is sent into the abyss. After a splash (10 seconds later) you hear a roar and a surge of bloody water arises from the opening. A demon sea creature lifts its head out of the opening and spews out the disembodied corpse of the opponent, it the descends back into the hole and dissappears.

2.) The player grabs the opponents and start of swing the opponent round impaling them numerous times into the stalagmites and stalagtes, the water starts to become a deep red and with every smash into a spike arises a nice crunch ( after about 12 impalements to the opponent, the player starts to strangle them under the water - drowning them, then after they are dead the player sticks them on the a stagtite to go with the collection of dead corpses.

Please do feel free to post your own ideas on arenas and stage fatalities.