When we talk about typing fast (or very fast), using online software or typing game, yes everyone can type fast, based on game or test scores, and definitely we believe the fact that 'practice makes perfect'.  Practice does make perfect if we do repetitive exercise on same test or game, but in real life we will not going to type same thing every time.

I believe that in order to type fast, a typist should have combination of proper techniques and the accuracy itself.  In order to calculate typing speed we require both SPEED and ACCURACY assisted by proper typing techniques or keyboarding skills.

How to type faster?

1.  Learn proper basic technique (from book, the Internet or good instructor)
2.  Increase the stroking accuracy
3.  Increase the speed of text drilling
4.  Consistency is needed on early stage of learning typing
5.  Yes, typing software and typing game is helpful to assist a new typist