-To play, press space to start (or 1 for an easy game) then use the arrow keys
-(or the numpad if you prefer) to steer around, dodge rocks, and make your way
-rightward. You can also press F to toggle full-screen mode and P to pause.
+Here are the keys:
+
+ Space: Start playing
+ 1: Switch to easy mode and start playing
+ 2: Switch to normal mode (default) and start playing
+Arrows: Steer (use short taps, and remember to slow down)
+ Esc: Quit
+ F: Toggle full-screen mode
+ P: Pause/unpause
+ 3: Save a screenshot