Williams Defender Settings -- of particular interest are Functions 08, 17, 18, 19, 21: bonus ship level, free play, start difficulty, progressive difficulty, planet restore frequency

williams_defender_settings.txt

BOOKKEEPING AND EVALUATION TOTALS (Functions 1-7)
=================================================
1. In game over mode, set switch to AUTO-UP and depress ADVANCE. The CRT
   indicates Function 1 and total left chute coins.
2. Record audit totals and depress ADVANCE for functions 1-7. To review a
   total that has been advanced past, set switch to MANUAL-DOWN and depress
   ADVANCE. Functions are displayed one at a time as follows:-

      Function    Total    Description
      --------------------------------
		   1          0      (Total) COINS LEFT
         2          0      (Total) COINS CENTER
         3          0      (Total) COINS RIGHT
         4          0      TOTAL PAID (Games)
         5          0      (Total Bonus) SHIPS WON
         6          0      TOTAL (Play) TIME (Minutes)
         7          0      TOTAL SHIPS (Played)
			
3. Operate ADVANCE to display Function 28, SPECIAL FUNCTION. From Function
   28 you can return to game over or zero audit totals and return to game
   over.
4. With switch set to AUTO-UP, perform a. or b. as desired.
      a. To return to game over depress ADVANCE.
      b. To zero audit totals and return to game over, operate HIGH SCORE     -- This doesn't work! Only full reset works.
         RESET to indicate "35" on CRT Function 28 and then depress ADVANCE.  -- Section 7 below uses "45" for a full reset.

GAME ADJUSTMENTS (Functions 8-27)
=================================
1. In game over mode set switch to AUTO_UP and then depress ADVANCE. The CRT
   indicates Function 1 and total left chute coins.
2. To raise Function number on CRT, operate ADVANCE pushbutton with switch
   set to AUTO-UP. To lower Function number operate ADVANCE with it set to
   MANUAL-DOWN.
3. With desired Function indicated, raise adjustment value by operating HIGH
   SCORE RESET with switch set to AUTO-UP; lower value by operating HIGH
   SCORE RESET with it set to MANUAL-DOWN. Value left on CRT is new setting.
   For values, see below and, for pricing, Table 1.

      Function   Factory Setting   Description
      ----------------------------------------
         08           10000        BONUS SHIP LEVEL (0=No Bonus Ships)
         09               3        SHIPS PER GAME
         10               3        COINAGE SELECT
         11               1        LEFT COIN MULT
         12               4        CENTER COIN MULT
         13               1        RIGHT COIN MULT
         14               1        COINS FOR CREDIT
         15               0        COINS FOR BONUS
         16               0        MINIMUM COINS
         17               0        FREE PLAY (Set to 1 for Free Play)
         18               0        STARTING DIFFICULTY (0=LIB; 1=MOD; 2=CONS)
         19              10        PROGRESSIVE WAVE DIFFICULTY LIMIT (4-25)
                                   e.g. 5-LIB; 10=MOD; 15=CONS;
         20               1        BACKGROUND SOUND (0=OFF; 1=ON)
         21               5        PLANET RESTORE WAVE NUMBER
         22               0        NOT USED
         23               0        NOT USED
         24               0        NOT USED
         25               0        NOT USED
         26               0        NOT USED
         27               0        NOT USED

4. Repeat steps 2 and 3 until all desired adjustments have been made.
5. Operate ADVANCE until 28 0 SPECIAL FUNCTION is indicated on CRT. From
   Function 28 you can return to game over or restore factory settings.
   Perform step 6 or 7 as desired.
6. To return to game over, depress ADVANCE with switch set to AUTO-UP.
7. To restore factory settings and zero audit totals:
   a. Operate HIGH SCORE RESET in AUTO-UP to indicate "45" on CRT Function
      28.
   b. Depress ADVANCE. The game returns to audit Function 1.
	c. Set switch to MANUAL-DOWN and depress ADVANCE to indicate Function 28
      on the CRT.
   d. Set switch to AUTO-UP and depress ADVANCE.

RESETTING HIGH SCORE FEATURE
============================
To reset the high score to the factory settings and erase signatures,
depress HIGH SCORE RESET in game over mode.