A few weeks after one phenomenally popular handheld franchise roared onto iPhone, another portable gaming favourite crosses the platform divide.

So, following the well received port of PSP hit Monster Hunter Dynamic Hunting, classic DS puzzler Zoo Keeper has been adapted for the iPhone by Kiteretsu.

For those of you fortunate enough never to have succumbed to this legal gaming crack, Zoo Keeper DX Touch Edition requires you to remove the on-screen animal tiles by lining them up in rows and columns of three.

Doesn’t matter whether the lines of three animals are horizontally or vertically – just so long as you ‘catch’ 100 of the critters.

One note of warning, though: there have been notes of discontent from the App Store Zoo Keeper community, who are complaining about a bug in the iPhone version.

Due to a frankly unforgivable piece of coding, the Zoo Keeper DX Touch Edition play area isn’t fully visible, rendering stage completion just that wee bit harder!

We hope the developer issues a patch extremely soon, but in the meantime, the game is available at the special launch price of $3.99.