The strategically unpredictable, massively destructive combat of Team 17's Worms returns to PlayStation Portable in this follow-up to 2006's Open Warfare. As in that predecessor, and earlier home computer versions of the internationally popular game, teams of heavily armed, anthropomorphic worms take time-limited turns, maneuvering around 2D battlefields and taking their best shots at the enemy, trying to take shifting winds, destructible terrain, and randomly placed explosives in to account as well.
Annelid armies are more customizable in this second handheld edition of the game, as players can choose their battle flags, tombstones, and victory dances, and pick from a selection of squeaky, cloyingly endearing voice banks. The series' most memorable super weapons are available here, including the "Holy Hand Grenade" and the "Super Sheep," along with newer uber-armaments like the "Bunker Buster" and the "Buffalo of Lies." An included level editor lets players design their own battlefields.
In addition to the standard battles, Open Warfare 2 features "Puzzle," "Fort," and "Rope Race" modes. A "Firing Range" mode allows players to get a feel for the game's powerful and unpredictable weapons. Internet-connected gamers can download new content and challenge other players around the world. A pass-around-the-handheld "Hot Seat" mode is also available, to challenge players who aren't quite so far away.