Good games stay within, but at the outer edge, of the player's regime of competence. That is, they feel doable but challenging. This makes them pleasantly frustrating - a flow state for human beings.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 1000 | 2011-09-15 14:46:08 | 69.89 | 95% |
| 418 | 2011-08-23 19:40:34 | 68.43 | 95% |