Good idea. The description is misleading, since the controls are done with the arrow keys and not with "w", "a", "s" and "d". Remove redundancy by putting similar behaviour in a superclass and specific descriptions in subclasses.

A button that, when pressed, stores the time the current time (maybe in a list) but doesn't stop the time running. E.g. on a typical stopwatch ([url=http://www.astopwatch.co.uk/content/products/fastime-21-stopwatch-88-0-l.png]see here[/url]) there is always such a button, to store the current times that someone needs to finish the laps (during running, swimming, cycling).