Worms: Open Warfare 2 review at 1-up.

"It might sound like a mouthful of hyperbole, but Worms: Open Warfare 2 isn't only the best Worms game ever; it's one of the best sequels ever. The first Open Warfare squashed the prolific series' typically sharp and colorful visuals into a fuzzy mess, and offered essentially one mode (skirmish). Open Warfare 2 simply blows it away with the first truly engaging Worms single-player campaign, an absolute bounty of customization options, the deep multiplayer we've come to expect from the series (with Wi-Fi this time), and even some entertaining DS-specific minigames. This is truly a Worms to be excited about, with portability that plays to the strengths of the series."

Full Source: 1-up