How to Beat the Full Moon in Castle Crashers

Keep your distance from the three black knight enemies at the beginning of the stage. There will be two normal knights and one beefy knight. Mount long-range attacks such as spells or arrows against the beefy knight, and try to avoid hitting the smaller knights. If you do not hit the smaller knights, they will tend to ignore you until the beefy one dies. Once the beefy knight goes down, take out the smaller ones and start moving to the right.

Move to the right slowly until you encounter a second grouping of one beefy knight and two smaller black knights. Use the same strategy as in the previous step to take out these enemies, then continue right slowly. You'll encounter a third trio, which should be dispatched in the same manner.

Continue up the mountain, dodging boulders and killing smaller enemies along the way, until you reach a small shack on the side of the mountain. Here you will be ambushed by a massive wave of normal black knights.

Keep as much of the horde as possible on one side of your knight as you battle the ambushers. Avoid being surrounded. If surrounded, try to jump and air-juggle your way across the screen by mashing on the attack button and moving to the side with the least enemies. Use fast attacks and area spells -- if you have time -- to keep the enemies from doing damage. Keep hacking away until you defeat your ambushers.

Enter the shack to earn the Silver Sword, then exit and climb the ladders up the mountain.

Continue moving to the right. You will be attacked by a constant stream of black knights and a new "Eskimo" enemy as you go. Dispatch them with quick attacks and continue right. Eventually, you will reach the top of the mountain and the end of the level.