The top of the screen has a pattern of colored balls. They stick to each other and to the top of the screen. If you get three of the same color touching they’ll disappear, dropping any balls attached to them (that aren’t attached to anything else, like another column of balls or the top of the screen). Periodically, the top of the screen gets closer to the bottom.

As you shoot the randomly picked colored balls out of a small “gun” at the bottom of the screen which you control with the track wheel, you need to keep track of how far down the balls are hanging. Should they go down off the bottom of the screen, you lose a life. Lose three times, and that’s it for your game.

Simple, right?

The execution makes it a bit more complicated.

The patterns that make up the beginning of the screen determine where you want to fire balls of different color; the random choices of color on what ball is next (you can see one ahead) can make or break you.

Yes, it’s possible that you will simply never get a ball on a certain screen that will let you advance. It stinks, but it happens.

So, with a game this simple, what could go wrong?

Well, most of the problems with it are defined probably best as “niggling”. It’s hard to aim, especially with as small of an arrow as you get, and sometimes you get weird “bounces” or “sticks” with the ball that don’t feel like they should’ve gone as they should’ve.

Worse yet is when those are caused by lag – say, getting an e-mail on your Blackberry while trying to aim – that causes your apparent aim to pause, while actually still moving, especially if the automatic shooting of the ball (if you take too long) goes off.

It’s also easy to fire more than one ball at a time if you’re not careful. Not to mention the whole “never getting a ball that helps”.

There’s no way to get extra lives, at least, as far I’ve seen, and so you can only go so long before that’s it.

And that’s a bit of the joy of the game. It’s short, it’s simple, it’s to the point. It’s fun. It’s another one of those short, sweet games on the Blackberry that are fun to play during meetings or while you’re stuck in the auto mechanic shop waiting for a tire rotation. You’re not going to be immersed in it for hours straight, and if the game gets too tiresome – just start a new one.