Brief instructions can be accessed by pressing the HELP key after the game has loaded. Alternatively, brief printed instructions can be viewed here.  Full instructions are contained in Chapter 2 of the "Flight Path Tutor" notes, which can be accessed on the selection screen.  Extra memory (512k+) is auto-detected and used for game enhancements, such as printer support.  Game includes a Rangs sports boomerang catalogue and guide to throwing sports boomerangs.