Complex sentence: The game is a port of "Dead or Alive Xtreme 2" for the Xbox 360, and the title expands upon the activities available in the original which consisted of mainly beach-related mini-games.
Split into simpler sentences: The game is a port of "Dead or Alive Xtreme 2" for the Xbox 360. The title expands upon the activities available in the original which consisted of mainly beach-related mini-games.