We had an absolute blast playing Fieldrunners 2, and recommend the title to any tower-defense fan. Even those who typically shy away from the genre will find a very different, and very enjoyable strategy title here.

It may not have the longest campaign in the world, but Emergency packs in more than enough bang for your handful of bucks.

Run Fatty Run is a fun distraction and a somewhat decent motivator for people with a few pounds to lose, but it does little to advance the running sub genre, or hang with the best players in the game, for that matter. Still, it's a huge guy running from a tiger. Make of that what you will.

For its attention to detail, nostalgia and unashamedly daft story, Metal Gun delivers. It's a shame that it's let down in the final analysis by a rather frustrating joystick, but we still had fun with it.

Combine that with the uninspired battles, and Sinbad simply lacks an addictive hook. Eventually, we questioned the point of playing this game, and after failing to come up with a good answer, deleted it. What could have been, oh yes. What could have been.

Disney could've put more effort into the app, but as it stands, this retro-flavored effort knows its roots.

Knights of the Round Cable succeeds in consuming hours upon hours of time, thanks to its addictive "just one more go" hook.

Tap Tap Revenge Tour does a great job of living up to the legacy of one of the most popular music gaming series on the App Store. There's a huge amount of variety in the music selections, a pretty generous chunk of free tracks, and the Jam mode lets you carry on rocking even while you wait for the cooldown on your career.

With a far great focus on action and reaction, rather than deep strategizing, it's a very different take on the tower-defense genre. Disappointing though it is that consumable advantages are available for cash when you've already bought the game outright, it's still fun enough to play without them.

Outwitters does a great job of offering up some seriously meaty content for absolutely nothing. There's some fine strategy to be had online, although the experience is very dependent on the commitment and availability of your particular opponent.

Even without a buddy along for the ride, Left2Die justifies its $0.99 asking price, and with multiple weapons and characters to unlock (priest, sheriff, business man), it'll keep you fragging zombies through the weekend.

MapleStory Live isn't shy about presenting its pay-wall to you, and from the moment you start the free version the game is all about what you CAN'T enjoy.

The presentation hooked us from the beginning. The simplistic and mostly black and white graphics take us back to the Atari 2600 days, and the spacey music does a great job lulling us into a somewhat relaxed state.

We had a concern when we previewed the game that the game's pace and repetition may go against it in the end, and it's certainly true that (boss-fights aside) the game becomes a bit of a trudge once you've taken on the first dozen or so levels.

It's certainly true that there are a huge number of endless-runners vying for everyone's attention at the moment, but Hiptic's GoNinja offers up enough variety (just) to make it worthy of checking out. If you've become utterly exhausted by the genre though, it's unlikely that the game will give you a second wind.

We definitely recommend TheEndApp for Temple Run fans looking for something a bit different. We just wish more thought went into the missions and plot, but as far as free iOS games go, we can't think of a better way to embrace mankind's destruction.

If you couldn't play Kingdom Rush the first time around, you owe it to yourself to play it now.

They did such an excellent job imbuing the heroes with personality while creating a gorgeous world for them to explore, pulling art from the Old West and merging it with cool undersea scenery; everything has a nice summery feel. Even the title screen that features parallax scrolling is cool. A nice touch, indeed.

The developers kill the music prematurely. You'll start to get the hang of things and then, suddenly, the song stops. If anything, it left us wanting more. A shame, since Moonshark's game is so enjoyable.

There's an awful lot to love about Darkside: it looks fantastic, it plays brilliantly, and there's an awful lot of content to be had for less than a dollar.

The core gameplay may never evolve beyond steering directionally, flying through hoops, gathering stars and proceeding along a series of on-rails levels. But it's done so competently, and with some much care and attention to detail, that you won't fail to fall in love with Kiloo's new creation.

CSR Racing isn't the best driving game on the App Store, but it's still one players should check out, especially if they're huge car fanatics. Now all we need is head-to-head online/offline multiplayer, and we'll be set.

What we can say for certain about Zombie HQ however is that it's a highly-accomplished and satisfyingly brutal arcade slasher that should leave even the most over-saturated fans of the undead genre feeling very happy indeed.

Stupendous mobile game graphics, a powerful collection of weapons and equipment, mowing down zombies and seeing their heads splatter, affordably-priced in-app cash and gold, surprisingly responsive first-person controls.

There's an awful lot to like about Vampire Season: it's a beautifully drawn game, there's great variety in the cast of characters, and this is a game that knows better than to take itself too seriously. We did occasionally get annoyed with the rather out-of-control camera which can zoom into the action when you really don't want it too, but apart from that this is a very refreshing take on an increasingly stale genre.

So is Unstoppable Fist worth a purchase? Yes, especially if you're a fan of those brawlers from back in the day. The game's enemies are a bit cheap (we would nix two-hit baddies altogether), but you'll make serious headway on Easy and Medium. On top of that, the outstanding presentation (the soundtrack is free, by the way) makes spending that $0.99 a smart decision.

Ultimately, it's a slightly different version of Where's My Water? with more than 80 new levels, and at the end of the day, no one can argue with that.

It clearly makes sense for Zynga to stick to a tried formula in both the style of gameplay and a recognizable interface that every member of the gaming audience has grown comfortable with, but there's no denying that the set-up is starting to feel just a little tired. Still, this is a very addictive little game that breathes new life into one of our favorite genres.