APP OF THE WEEK:9+, Konami Digital, iPad

Gesundheitis one of those games that you don't expect to get hooked on, and yet, you come back again and again.

The unlikely hero is a pig with allergies and a severe snot problem. But the very thing that makes him an outcast is what will save his village when it’s overrun by bacon-eating monsters. Because if there’s one thing the monsters love more than eating the village’s inhabitants, it’s snot. Sneeze a trail of it near them and they’ll follow it, allowing you to lure them into traps. It’s cute, in a slightly disgusting way.

The main aim is to trap the monsters, but you can also collect starfruit along the way, try to complete it in a certain amount of time or use the minimal amount of sneezes to get the level completed. The levels quickly get more challenging, and some will having you tearing your hair out with frustration – before giving it yet another go.

The game’s design is equally brilliant. The controls are all touch and swipe – no on-screen controller to deal with. The hand-drawn graphics are excellent, and they’ve gone to some effort to make the sound effects stomach-churning and cute at the same time.