Map thread (scroll down main post): http://www.minecraftforum.net/forums/mapping-and-modding/maps/2278864-ctm-bosses-bosses-collection-mitheys-maps-terra
Features:
Length: Around 1/2 hour of potential gameplay
Players: 1+ (1-2 recommended)
•A snowman mob boss with deadly abilities
•Demonstrates some of the capabilities of the new commands and features of 1.8
•Easy/normal/hard mode difficulties
•Bosses scale with the amount of players present
•Boss health bar
•Music by Waterflame
•High scores on boss kill times
•A ton of fun on multiplayer!