Review in Full (tl;dr version at the end):
The classic 2D Worms formula returns in Worms Revolution with a few significant changes. The new additions to the gameplay experience include four different classes, dynamic water, and physics objects, but none of the changes radically alter the familiar Worms experience.
The Worms Formula: For those who don't know, the meat of any Worms game is a turn-based strategy / shooter experience where you control a team of worms and move around a map (or utilize your worms' positions) in order to use weapons such as the explosive Sheep and the famous Holy Hand Grenade to eliminate enemy worms. All Worms games have no small measure of humor, as you'd expect upon hearing the premise, and the worms themselves contribute to the humor with their own gibberish vocalizations as they taunt enemy worms and panic if a stick of dynamite is set next to them. The weapons are of course part of the humor, and the Sheep and the Holy Hand Grenade aren't even the wackiest among them. At the core, however, the gameplay experience would make for a good time in multiplayer play even without the abundant humor.
New Additions (Classes, Dynamic Water, and Physics Objects):
Classes: The four classes of Worms include the basic soldier, the weaker but more nimble scout, the scientist, who provides a health bonus in turn for being weaker, and the slower but stronger and more resillient heavy.
Dynamic Water: The new dynamic water is an option utilized as a stage hazard and fired by three new weapons. Any worm who is knocked into dynamic water will take steady damage over time, instead of instantly drowning upon contact with normal water. Dynamic water utilizes real-world physics, sinking to the lowest area possible given its location and trajectory.
Physics Objects: Physics Objects are relatively normal objects scattered around every map. The twist, however, is that each object explodes when sufficiently damaged. In the process, they unleash fires, poison gas, or even dynamic water into the immediate vicinity.
Verdict and Recommendation: The wacky action of the Worms franchise is spruced up a bit by the new enhancements. None of the features radically alter the core experience, however, meaning that those who tried another Worms game but found it to be only interesting as a novelty or altogether unappealing need not apply. Worms Revolution is as good of a starting point as any for series newcomers, though, and those who enjoyed previous installments should find plenty to like here. If you are undecided, keep in mind that Worms Revolution is first-and-foremost a multiplayer experience, and the singleplayer campaign is decent, but it presents nothing to sway your decision.
tl;dr version: Worms 'Revolution' is no revolution, but the perennial Worms formula didn't need to be signficantly altered anyways.