Worms Blast is latest edition in Ubi Soft's popular action/puzzle series, and while it's not going to win any awards for originality, this is a fun and appealing game. Worms Blast's overall approach is similar to Bust a Move, though you move around the bottom of the screen in boats and there are less predictable puzzles. At the start of each round, you can select one of the characters and each one has unique advantages and weaknesses, affecting speed and accuracy. The object in Worms Blast is to shoot the same-colored blocks out using one of your worm's weapons. You have an onscreen indicator which shows you the direction of your shot, and this is also be used to control how strong you want the shots to be. When you hit the same colored block, that block is destroyed along with any same-colored blocks next to it. You can aim this and it flies up the screen, which can be quite tricky when shooting diagonally. Shooting the wrong color makes the blocks change to the color you shot them with, making things more difficult. On each board, you'll find several other types of blocks, each of which has a different effect. The most important of these are the Anchor Blocks, which hold the other blocks together, and cause a huge chain reaction when hit. There are also dead blocks, which need to be colorized when you find them. There are also rainbow blocks which can be destroyed by any color shot and finally there are bounce blocks which make the shots recoil off of them.

You start with the standard weapon, but you can collect special weapons when you knock out a crate, including Laser Beams, Bazookas, Grenades, Dynamite and more. Each weapon has unique properties that you need to master. For example, Grenades are time released and will explode and destroy the character if you don't shoot them quickly. You have to keep an eye on the water level, since this gradually rises. Luckily, you can make the waters fall by shooting stars as they descend. Worms Blast offers eight different multiplayer modes that increase it's replay value substantially. For solo players, the game includes an RPG style Puzzle mode where you have to go through various levels on your way to the final battle. These unfold linearly and there are also some cool special stages where you can win bonus items. If this single-player mode isn't exciting enough, you can also choose to play in the tournament which features several types of modes including: Target Alley where you have to destroy all the objects on a screen. In the Frogging mode, you have to avoid obstacles while shooting the objects on screen. Team 17 mode has you shooting out stars from the development mode. Additional Tournament modes include a shooting gallery and one where shooting targets before they hit the water below extends your time. There's also a mode where you need to advance to land by shooting out targets. Worms Blast's tournament modes are enjoyable, though many of them are variations on the same basic theme, changing the basic essence of the gameplay little.

Worms Blast also features several different multiplayer modes that extend the fun for 2 players. These are all variations on the single player games, though the action is divided in half on the screen. During these modes, you battle it out with a rival player and can either work together or sabotage them. Some of these modes involve collecting the most stars, racing to shoot out the land-locked mines and a competitive mode where the highest score wins. There are more interesting variations where each time you shoot out a block, your opponent's blocks move down a level and one where you are limited to a single boat and have to survive on the level for as long as possible, with the one remaining player the victor. During the two-player mode, there are also special items in the crates that you can use to cause the rival player's boat to be eaten by Pirhana, reapiar your own boat damage, equalize the water levels and other cool items.