If you don't already have too many copies of Plants vs. Zombies on your PC/Xbox 360/iPhone, the addictive tower defense game is also releasing to Nintendo DS next January for $20 with a bunch of new content, as outlined in this trailer.

Along with a two-player versus mode and the ability to play as Plants or Zombies, the dual screen edition will feature new achievements, new minigames (Heat Wave, Homerun Derby, Air Raid, Bomb All Together), and more.

Shown in this trailer but not necessarily promised for the game: zombie unicorn neighing "Brrrraaaains!"