Kora Laboratories INC.

Information: This is one of the most feared places in the game, and makes a real rush to get away from enemies. The enemies here will kill you in 1 hit (except for the mutant cows which have a 1/2 chance of hitting you hard.) First find the Out of Control Experiment inside a building westward. This guy is alot weaker than other enemies in the lab. Killing him gets you the key to the mutant weakling's jail cell in a building in the center of the area. Killing the mutant weaking gets you the key to the house in the most southwest house in the area. In this house is the rake demon. Killing the rake demon seems to do nothing, but it does do something. Hooked onto the house where the weakling was, you might've noticed an enclosed room that couldn't be opened, but you could see through it's windows. The Radiation Experiment is in this room. Kill it and go to the hospital in the northeast corner of the area. Avoid the monsters here for the halls are very narrow, and run to the left hallway and go up the flights of stairs, you'll find yourself in the middle of two mutants and a key nearby. Grab the key, go back to the enterence of the hospital, go through the left hall this time, and run to the LAST room. If you open the wrong room, you could unleash another mutant into the halls. Open it and run up the flights of stairs. You are now on the roof of the hospital building. There are some dangers up here, but try to avoid them and slay the mutant cow guardian, which is suprisingly easy. If you saw the tower to the left of the center of the lab with a locked door, this is where you go next. Once you go into the portal, you'll see Kora. He has powerful mecketon-based attacks and casts fire tornado. He is the toughest mystic key boss and if your not very strong, he will woop your ass. Fight him in a group or when your level 150. He drops a nifty elixer and the 8th mystic key.