Perhaps the likelihood of hacked accounts would decrease greatly. The password would be numeric, just like an old PC game I played. As soon as you click "Play" to start, the secondary password will appear to enter the game.

Here is an example:

Name:  senhanumerica2.jpg
Views: 90
Size:  87.5 KB
Name:  wydsenha.jpg
Views: 92
Size:  13.4 KB