Like Flight Control, sort of, only you’re in a boat and you shoot other boats, while trying to stop them from shooting the supply ships.

You’re a small boat, with guns, like I said. You draw a path for your boat to follow and click on the screen to shoot to that spot. The big supply ships come in from the edges of the screen and if they reach an island they drop a power up, such as a spread shot or extra health. The bad boats also come from the centre of the screen and shoot at both you and the supply ships.

The trick is to manage moving around with the very careful aiming needed to hit the correct boats – and only the correct boats. You can damage the supply ships just as easily as the enemy.

But is it any good? Well, yes. It’s a bit fiddly and hitting boats with any accuracy is hard, but it’s fun in short bursts and, best of all, it’s free. I’m finding myself hitting the Home button when I die instead of restarting, but I have been going back.