Fire in the hole! Fragger takes a little Angry Birds, mixes it in with a bit of Worms and throws in a grenade-tossing protagonist. It's not big, it's not particularly clever, but it is yet another solidly enjoyable casual Windows Phone game. It's also a fine way to start off your Nokia Lumia 710 app collection.

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So, with that intro in mind, is Fragger the next Angry Birds? Not quite, but the premise isn't entirely dissimilar. The goal is to take out a bunch of targets (army dummies rather than pigs) by judging the trajectory and power of a static projectile launcher.

Unlike Rovio's blockbuster, though, you're not operating a slingshot. Rather, your little army chap must lob his small armoury of grenades at the targets. By dragging on the screen, you can adjust your aim via a handy arrow - rather like the aforementioned Worms. Dragging away from your fragger, meanwhile, will increase the power of your throw. Once you're happy with the firing calculations, simply release the screen and a grenade will be lobbed. It'll only detonate once it's come to a complete stop.

Fragger employs some rudimentary physics, so the skill comes in judging the trajectory of the grenade, bouncing it off walls where necessary. There are plenty of interactive elements to spice things up, too. Targets may be hidden behind flimsy cover, which can be removed with an additional grenade. Alternatively, you might be able to sent a target flying off screen (which is as good as blowing them up) by sending a box into them with a handily placed explosive. You can even use the unexploded grenades themselves to topple targets from their lofty perches.

It's this variety of approaches that keeps Fragger fresh throughout its generous supply of levels. So, too, does the game's by-now-standard three star award system. Ace a level with as few grenades wasted as possible and you'll get a full three-medal score. Any less and you'll pass, but with a lesser award, which naturally won't sit well with any completionists among you. Getting top marks is easy early on, but extremely tricky in the latter stages of each of the 12 worlds.

Adding interest, too, is the customary Xbox Live integration. Once again you can unlock achievements that contribute to your Xbox Gamerscore - a solid incentive to do well if you're a dedicated console gamer. Whether this element is worth the full £2.29 charge on the Windows Phone Marketplace we're not sure - not when the game was initially designed as a free Flash game for your computer.

Still, the level count is generous and the presentation is clean and tidy, if a little bland. It's not the app with which to show off what your Nokia Lumia 710 can do from a graphical perspective, but then there are plenty of other apps for such a task. 

For a game all about blowing stuff up, Fragger is surprisingly stealthy in its assault on your free time. You'll find it sneaking into your life whenever you have a spare moment or two as you chase that extra medal, muse over how to hit that bonus box or seek to unlock the next world. Not dynamite, then, but more of a controlled explosion.