iPhone Roundup

Crayon Physics Deluxe

• Publisher: Hudson
• Developer: Kloonigames
• Price: GBP 2.99
• Download size: 9.8MB

John Walker reckons this clever physics-based puzzle game is worthy of a creditable 7/10 on the PC. Who could resist a cheaper version - one which lets you physically draw your creations on the screen? Not me, that's for sure. Just like the grown-up PC version, the premise is magical. The playing area appears as a crumpled piece of paper, and your fingertip is the crayon. What you draw is up to you, but the goal always remains the same: get the little red circle over to the yellow star any way you can.

In its simplest form, you'll be drawing ramps between objects and dropping blocks onto the red circle to create momentum. But the further you progress the more elaborate the puzzles become, and the more room there is for crazed improvisation.

In no time you'll be creating makeshift clubs that swing around on a pivot and whack the circle across the level. One time I ended up, by accident, drawing a giant triangle that somehow dragged half the scenery with it. Unintentional solutions are never far away, and are part of the game's quirky charm. Admittedly, it's rife with exploits, but with 50 levels to choose from and a level editor built in, it's hardly worth grumbling.

However, there is a problem with the actual input process, which isn't suited to big sausage fingers. If the iPhone/iPod Touch's screen worked with as much precision as the Nintendo DS, a stylus would be perfect for playing a game like this. Sadly that's not possible, so drawing lines with precision is a dark art. It's fiddly to create the kinds of objects that were a doddle using a PC and a mouse.

Still, with a bit of patience, Crayon Physics Deluxe is a delight to play on the iPhone - and for the price is an essential purchase.

8/10

Trace

• Developer: Kevin Calderone
• Price: Free
• Download size: 8.7MB

Few games epitomise the bedroom coder spirit as well as Trace. Developed by college student Kevin Calderone, this deceptively simple platformer instantly endears itself with a childish graphical charm and devious level design. Although 'level design' is perhaps overstating things, given that the game requires you to design your own route to the exit by drawing your own platforms.

There are six worlds, each with 20 levels. You guide a little red stick man around various themed environments, including chalk, flame, space and water. With simple left/right controls mapped to the bottom left of the screen and a jump button on the right, you'll spend a few seconds figuring out a safe route, draw a few lines where appropriate, then work your way to the star-shaped exit. At first the solution couldn't be more obvious, but the further you progress into the game the sterner the challenge. As with Crayon Physics Deluxe there's rarely a set solution, and part of the fun is scribbling and erasing your way to an improvised route.

It helps that all the game's levels are unlocked from the beginning - so if you happen to get stuck at any point, you can just move on and try something else. Even when you're done the game records your clear times, giving you an incentive to go back and improve on your performance.

The visuals might be as rudimentary as they get, but Trace has a charm and a style all of its own. Given that it's free, it offers exceptional quality, and is another app we implore you to add to your download list.

7/10

Sneezies - Bubble Popping Fun

• Developer: Antair Games/Chillingo
• Price: GBP 0.59
• Download size: 5.8MB

A game where all you have to do is press the screen once per level hardly sounds like the most engaging way to pass the time. So how come Sneezies is so horribly addictive?

Partly because it's so unpredictable. In the game's Classic mode, each of the 45 levels kicks off with a bunch of super-cute 'sneezies', each floating in a bubble across an idyllic backdrop. You have to pop a designated number of them by flinging sneezing powder at them and setting off a chain reaction. How rude.

The fun is in trying to anticipate the best moment to chuck your weapon, then sitting back and waiting for their little sneezy noises to emanate. At first it's all a bit perfunctory, with easy targets making it rather simple to progress. But a little way down the line the game starts throwing vast quantities of sneezies into the mix and tasking you with setting off massive chain reactions that take patience (and a little luck) to pull off.

Once you've had enough of Classic mode, the game's 15 Challenge mode levels are equally maddeningly addictive. Here you have to reach a points target, and have a limited number of twitchy nosebags to throw. It ought to be boring, stupid nonsense, but it's far more entertaining than it has any right to be - at least partly because of the gorgeous visuals and high pitched noises. Okay, I'm easily pleased this time, but for 59p, I'm also a cheap date.

7/10