How to play
The most important rule is to stay calm and remain patient. Watch and concentrate. Timing is a lot more important than the strength (which you can't choose anyway, right?). It's not only important to hit the ball, but the way you hit it. If you hit it too early it goes straight down and earns you just 1 to 3 points. If you wait, and hit the ball as late as possible, it goes up and you may score 4 or even 6 points.
Remember that waiting too long might get you bowled out.
The wicket is down, now what?
Let me explain a few basic rules in case you're rookie cricketer. As you know, wicket consists of 3 vertical sticks called stumps, and another two sticks on top called 'bails'. If the ball hits the wicket and knocks it down, you're dismissed, or in this particular case - bowled. That's why the game runs as long as the stumps stay untouched. The batsman might even knock down the wicket accidentally by himself, but you can't see that happing in this game. In that case he's out too. All these situations are described in detail in the 'laws of cricket'.