Custom Game Genie Codes for Spy Hunter    (Courier New 8pt)
by Jeff Connelly from ~/mnt/ad4s2d/jeff/xmax/games/emu/nes/spyhuntr/sh.codes

-addr:xx-----short-description-of-code---ggcode-tab-tab-before----->-op-before-in-6502
 81C7:AD     (GG) infinite lives         SXKAYOVK	DEC $0111 -> LDA $0111
 B748:AD     (GG) infinite missiles      SZKUANVK	DEC $06BE -> LDA $06BE
 3686?8D:AE  (GG) infinite smoke         VXELTVSE	unable to locate abs addr
 AD8C:02     (GG) start w/ 2 lives       ZEEXKIAA	LDA #$00  -> LDA #$02
 AD8C:06     (GG) start w/ 6 lives       TEEXKIAA	LDA #$00  -> LDA #$06
 A58B:06     (GG) double missiles        TEEXLILA	STA $06BE -> ASL $06BE
 AD07:0F     (GG) slow down timer        YAEZNIYE	LDA #$07  -> LDA #$0F
 8BD4:2C     (GG) keep specials 1/2      GXSAKUSE	STA $014F -> BIT $014F
 8BD7:2C     (GG) keep specials 2/2      GXSANUSE	STA $0168 -> BIT $014F

 0986:F1     ultra high speed            ONAAVP		LDA $F0   -> LDA $F1
 0988:01     (UO) speed up game          PEAEEP		JSR $89AE -> JSR $0189
 2DE5:EA     (UO) slow motion, score ^   XVTZSS		RTS       -> NOP
 1C14:A6     (UO) fast enemies           VZPPKG		LDA #$10  -> LDA $10
 AD07:7F     (UO) very slow timer        YYEZNIYE	LDA #$07  -> LDA #$7F
 1C15:20     enemies drive backwards     AZPPSG		LDA #$10  -> LDA #$20
 1C15:FF     no enemies                  NYPPSK		LDA #$10  -> LDA #$FF

 22C0:60     start out of bounds         AVGZAZ		routine   -> RTS
 -------     a bug: go straight after being released, can go through walls
 2216:EA     fix above bug               XTPZTX		SEC       -> NOP
 2207:FF     can go out of track(limited)NYAZYX		LDA #$0A  -> LDA #$FF
 2218:FF     go far out of bounds        NYPXAX		SBC #$38  -> SBC #$FF
 5046:EA     unexpected collisions       XTGITE		ASL A     -> NOP
 505C:05     random rattling car         IAISGA		LDA $400,X-> LDA $500,X
 0229:69     shrink gas tank             PTZEPX		BNE $8244 -> ADC $8244
 1810:95     (UO) no gun                 SPPPEA		LDA $8A,X -> STA $8A
 1A59:D4     (UO) no enemies             KIIOOZ		STA $703,X-> STA $7D4,X
 1A99:47     (UO) no civilians           YKPOOZ		LDA $C9   -> LDA $47
 1A98:60     no enemies or civialians    AVPOEZ		routine   -> RTS
 024D:A9     no enemy creation           OZGEIX		LDA $BC   -> LDA #$BC
 1A99:EF     only civilians              NYPOOX		LDA $C9   -> LDA $EF
 5415:9C     (UO) altered courses        KPPIIK		JSR $D4DA -> JSR $D49C
 180F:EF     invisible car               NYAONE		STA $8A,X -> STA $EF,X

 0882:FD     zelda-like scrolling        SNAAXE		LDA $FD   -> LDA $FC
 0886:FF     almost zelda-like scrolling NNAAVE		LDA $FC   -> LDA $FF
 01BA:16     play in the dark            TOLEZP		LDA #%11110->LDA #%10111
 01BA:0E     invisible sprites           TELEZO		LDA #%11110->LDA #%01110
 016F:A0     sprites as background       EZTEYP		LDA #%1011000->LDA #%10100000
 0175:2D     skip introduction           IZYAIO		JSR $AE8D -> AND $AE8D
 2D1F:29     flashing sprites, teleport  PZPXNS		STA $01BB,X->AND $0188
 08B3:10     fragmented background       AOLAUA		LDA #$E8  -> LDA #$10
 08F3:60     fragmented water level      ATLENA		LDA #$D8  -> RTS
 08BC:60     checkerboard background     AVLEKA		routine   -> RTS
 14BC:60     deathmatch mode (const bg)  AVLOGG		routine   -> RTS

 4F94:60     play blindfolded            AVPGKY		routine   -> RTS
 4FBF:60     invert background, bw cars  AVLKNY		routine   -> RTS
 515F:10     dull bg, vibrant cars       APISYP		STA $300,X-> STA $310,X
 515F:01     pyschadelic colors          PAISYP		STA $300,X-> STA $301,X
 515F:11     no bg, orange cars          PPISYP		STA $300,X-> STA $311,X
 515F:13     almost completely monochromeLPISYP		STA $300,X-> STA $313,X
 4E40:2E     crude dashed lines on road  TZGGEV		JSR $D15A -> ROL $D15A

 018C:29     uninitialized timer+score   PXAEGO		JSR $AE28 -> AND $AE28
 2E31:09     score of 999999             PALZOV		LDA #$00  -> LDA #$09
 2E4F:07     timer set to 777            YAGXNT		LDA #$09  -> LDA #$07
 2CEC:60     fools' unlimited time       AVTXKG		LDA $01BB -> RTS
 2D0F:29     fools' unlimited time II    PZAXNS		LDY $01BB,X->AND $01BB
 2D0F:AC     fools' unlimited time 998   KZAXNS		LDY $01BB,X->LDY $01BB
 2D1A:E8     reverse=reverse timer       ETPXXS		DEX       -> INX

 4040:07     music, but no noise or sfx  YAGGAA		LDA #%1111-> LDA #%0111
 4040:08     sfx (noise), but no music   AAGGAE		LDA #%1111-> LDA #%1000
 4044:EA     missle sound at start       XTGGGE		RTS       -> NOP
 417B:01     less bg music               PAYKLP		STA $4000 -> STA $1000
 417B:FF     sound morphs bat-mobile car NYYKLO		STA $4000 -> STA $FF00
 4188:A8     radio-like music            EXAKAO		LDA $A9(ct)> LDA $A8(ft)
 418D:A9     high-pitch music            OXAKIO		LDA $A8(ft)> LDA $A9(ct)
 4047:85     power up sound continous    SAGGYA		LDA $C274,X> LDA $C274
 4047:B5     rumble, power up            SLGGYA		LDA $C274,X> LDA $74,X|C2
 4048:00     missiles spray, slap sound  AAGKAA		LDA $C274,X> LDA $C200,X
 4056:EA     dot matrix printer when hit XTIGTE		INY       -> NOP