diff --git a/src/index/artwork.idx.a b/src/index/artwork.idx.a
index d661977f1..1aa0c2629 100644
--- a/src/index/artwork.idx.a
+++ b/src/index/artwork.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15432726
+         !be24  15433238
          !le16     5112
diff --git a/src/index/attract.idx.a b/src/index/attract.idx.a
index 054fd7ec8..cad9c6177 100644
--- a/src/index/attract.idx.a
+++ b/src/index/attract.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15378117
+         !be24  15378629
          !le16     5695
diff --git a/src/index/cache00.idx.a b/src/index/cache00.idx.a
index 4d13ec0f7..645829914 100644
--- a/src/index/cache00.idx.a
+++ b/src/index/cache00.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15311290
+         !be24  15311802
          !le16     4033
diff --git a/src/index/cache01.idx.a b/src/index/cache01.idx.a
index 3d03cee79..cf72c021a 100644
--- a/src/index/cache01.idx.a
+++ b/src/index/cache01.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15325472
+         !be24  15325984
          !le16     4473
diff --git a/src/index/cache10.idx.a b/src/index/cache10.idx.a
index cd193cd55..0cc7d8b6f 100644
--- a/src/index/cache10.idx.a
+++ b/src/index/cache10.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15343575
+         !be24  15344087
          !le16     5830
diff --git a/src/index/cache11.idx.a b/src/index/cache11.idx.a
index 0cd82ff23..b12cf876a 100644
--- a/src/index/cache11.idx.a
+++ b/src/index/cache11.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15364359
+         !be24  15364871
          !le16     6429
diff --git a/src/index/coverfade.idx.a b/src/index/coverfade.idx.a
index b3bdcee5b..1142d99be 100644
--- a/src/index/coverfade.idx.a
+++ b/src/index/coverfade.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15437838
+         !be24  15438350
          !le16      410
diff --git a/src/index/credits.idx.a b/src/index/credits.idx.a
index 9a5d46d3c..4e6ddd47d 100644
--- a/src/index/credits.idx.a
+++ b/src/index/credits.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15438592
+         !be24  15439104
          !le16      450
diff --git a/src/index/decrunch.idx.a b/src/index/decrunch.idx.a
index 94cf7c1a6..421fe9f91 100644
--- a/src/index/decrunch.idx.a
+++ b/src/index/decrunch.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15439042
+         !be24  15439554
          !le16      303
diff --git a/src/index/demo.idx.a b/src/index/demo.idx.a
index 20c509de8..5b5d11000 100644
--- a/src/index/demo.idx.a
+++ b/src/index/demo.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  12287811
+         !be24  12288323
          !le16     1652
diff --git a/src/index/dfx.idx.a b/src/index/dfx.idx.a
index 41660e144..99fac9128 100644
--- a/src/index/dfx.idx.a
+++ b/src/index/dfx.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15386452
+         !be24  15386964
          !le16     1640
diff --git a/src/index/dgr.fizzle.idx.a b/src/index/dgr.fizzle.idx.a
index dc12b409c..6e62cc118 100644
--- a/src/index/dgr.fizzle.idx.a
+++ b/src/index/dgr.fizzle.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15438324
+         !be24  15438836
          !le16       67
diff --git a/src/index/dgr.idx.a b/src/index/dgr.idx.a
index bfd8bdcf1..3a7f9aa5b 100644
--- a/src/index/dgr.idx.a
+++ b/src/index/dgr.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15432667
+         !be24  15433179
          !le16       59
diff --git a/src/index/dhgr.idx.a b/src/index/dhgr.idx.a
index 19fbb50bf..221846e05 100644
--- a/src/index/dhgr.idx.a
+++ b/src/index/dhgr.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15431123
+         !be24  15431635
          !le16     1426
diff --git a/src/index/dtitle.idx.a b/src/index/dtitle.idx.a
index a86ac3610..08e9510dd 100644
--- a/src/index/dtitle.idx.a
+++ b/src/index/dtitle.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15415357
+         !be24  15415869
          !le16      540
diff --git a/src/index/fx.idx.a b/src/index/fx.idx.a
index 91315ffc7..3f1065f4c 100644
--- a/src/index/fx.idx.a
+++ b/src/index/fx.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15383812
+         !be24  15384324
          !le16     2640
diff --git a/src/index/gamehelp.idx.a b/src/index/gamehelp.idx.a
index d703fbb5d..9e841e14e 100644
--- a/src/index/gamehelp.idx.a
+++ b/src/index/gamehelp.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15388450
+         !be24  15388962
          !le16     7329
diff --git a/src/index/gr.fizzle.idx.a b/src/index/gr.fizzle.idx.a
index 0f1bfa6d2..a621f6b0f 100644
--- a/src/index/gr.fizzle.idx.a
+++ b/src/index/gr.fizzle.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15438248
+         !be24  15438760
          !le16       76
diff --git a/src/index/gr.idx.a b/src/index/gr.idx.a
index 16232946a..4011799f8 100644
--- a/src/index/gr.idx.a
+++ b/src/index/gr.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15432549
+         !be24  15433061
          !le16      118
diff --git a/src/index/helptext.idx.a b/src/index/helptext.idx.a
index 201497c79..f84033e17 100644
--- a/src/index/helptext.idx.a
+++ b/src/index/helptext.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15438391
+         !be24  15438903
          !le16      201
diff --git a/src/index/hgr0.idx.a b/src/index/hgr0.idx.a
index 479f6e8f7..8fbf3eeca 100644
--- a/src/index/hgr0.idx.a
+++ b/src/index/hgr0.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15415897
+         !be24  15416409
          !le16     4897
diff --git a/src/index/hgr1.idx.a b/src/index/hgr1.idx.a
index 451e96ed7..1a59dfc77 100644
--- a/src/index/hgr1.idx.a
+++ b/src/index/hgr1.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15420794
+         !be24  15421306
          !le16     1775
diff --git a/src/index/hgr2.idx.a b/src/index/hgr2.idx.a
index 467bda0d9..b68be1d30 100644
--- a/src/index/hgr2.idx.a
+++ b/src/index/hgr2.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15422569
+         !be24  15423081
          !le16     1181
diff --git a/src/index/hgr3.idx.a b/src/index/hgr3.idx.a
index 6b6219a7c..a76197e8f 100644
--- a/src/index/hgr3.idx.a
+++ b/src/index/hgr3.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15423750
+         !be24  15424262
          !le16     3421
diff --git a/src/index/hgr4.idx.a b/src/index/hgr4.idx.a
index 8f112bfdb..dd6436181 100644
--- a/src/index/hgr4.idx.a
+++ b/src/index/hgr4.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15427171
+         !be24  15427683
          !le16     3359
diff --git a/src/index/hgr5.idx.a b/src/index/hgr5.idx.a
index af5cd1df2..5316968f3 100644
--- a/src/index/hgr5.idx.a
+++ b/src/index/hgr5.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15430530
+         !be24  15431042
          !le16      479
diff --git a/src/index/hgr6.idx.a b/src/index/hgr6.idx.a
index 9fbda230b..922f4a57a 100644
--- a/src/index/hgr6.idx.a
+++ b/src/index/hgr6.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15431009
+         !be24  15431521
          !le16      114
diff --git a/src/index/joystick.idx.a b/src/index/joystick.idx.a
index d0f34872e..8c5553838 100644
--- a/src/index/joystick.idx.a
+++ b/src/index/joystick.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15439345
+         !be24  15439857
          !le16     2370
diff --git a/src/index/miniattract0.idx.a b/src/index/miniattract0.idx.a
index 3f6ccdc1f..68099c47b 100644
--- a/src/index/miniattract0.idx.a
+++ b/src/index/miniattract0.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15401153
+         !be24  15401665
          !le16     4933
diff --git a/src/index/miniattract1.idx.a b/src/index/miniattract1.idx.a
index 555302dd7..34594cf41 100644
--- a/src/index/miniattract1.idx.a
+++ b/src/index/miniattract1.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15406086
+         !be24  15406598
          !le16     2400
diff --git a/src/index/prelaunch.idx.a b/src/index/prelaunch.idx.a
index 241758d26..aef4bf12a 100644
--- a/src/index/prelaunch.idx.a
+++ b/src/index/prelaunch.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15370788
+         !be24  15371300
          !le16     7329
diff --git a/src/index/res.cover.idx.a b/src/index/res.cover.idx.a
index 81565138c..820fdbca6 100644
--- a/src/index/res.cover.idx.a
+++ b/src/index/res.cover.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  4141056
+         !be24  4141568
          !le16     8192
diff --git a/src/index/res.help.idx.a b/src/index/res.help.idx.a
index 173c10bff..3f049d035 100644
--- a/src/index/res.help.idx.a
+++ b/src/index/res.help.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  4157440
+         !be24  4157952
          !le16     8192
diff --git a/src/index/res.title.idx.a b/src/index/res.title.idx.a
index 22afff3ba..2713f2539 100644
--- a/src/index/res.title.idx.a
+++ b/src/index/res.title.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  4149248
+         !be24  4149760
          !le16     8192
diff --git a/src/index/search00.idx.a b/src/index/search00.idx.a
index 1e2057fc2..7217e1658 100644
--- a/src/index/search00.idx.a
+++ b/src/index/search00.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15302045
+         !be24  15302557
          !le16     9245
diff --git a/src/index/search01.idx.a b/src/index/search01.idx.a
index 1da22880f..1fdf6ecc9 100644
--- a/src/index/search01.idx.a
+++ b/src/index/search01.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15315323
+         !be24  15315835
          !le16    10149
diff --git a/src/index/search10.idx.a b/src/index/search10.idx.a
index acab3ce86..2fea67a05 100644
--- a/src/index/search10.idx.a
+++ b/src/index/search10.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15329945
+         !be24  15330457
          !le16    13630
diff --git a/src/index/search11.idx.a b/src/index/search11.idx.a
index 5961b3b41..f32090b18 100644
--- a/src/index/search11.idx.a
+++ b/src/index/search11.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15349405
+         !be24  15349917
          !le16    14954
diff --git a/src/index/sfx.idx.a b/src/index/sfx.idx.a
index 2be0d0c34..34b1419f1 100644
--- a/src/index/sfx.idx.a
+++ b/src/index/sfx.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15388092
+         !be24  15388604
          !le16      358
diff --git a/src/index/slideshow.idx.a b/src/index/slideshow.idx.a
index 01db0bdca..b508baafc 100644
--- a/src/index/slideshow.idx.a
+++ b/src/index/slideshow.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15395779
+         !be24  15396291
          !le16     5374
diff --git a/src/index/title.idx.a b/src/index/title.idx.a
index c5759dc8f..9f8213f4e 100644
--- a/src/index/title.idx.a
+++ b/src/index/title.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15408486
+         !be24  15408998
          !le16     6871
diff --git a/src/index/xsingle.idx.a b/src/index/xsingle.idx.a
index 5801803a8..79d83f655 100644
--- a/src/index/xsingle.idx.a
+++ b/src/index/xsingle.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  15297841
+         !be24  15298353
          !le16     4204
diff --git a/src/prelaunch/flapple.bird.a b/src/prelaunch/flapple.bird.a
index fcc8885ee..fe021bcd4 100644
--- a/src/prelaunch/flapple.bird.a
+++ b/src/prelaunch/flapple.bird.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2020, 2022 by Frank M., qkumba
+;(c) 2020, 2022, 2023 by Frank M., qkumba
 
 !cpu 6502
 !to "build/PRELAUNCH.INDEXED/FLAPPLE.BIRD",plain
@@ -7,8 +7,7 @@
 
     !source "src/prelaunch/common.a"
 
-         +READ_RAM2_NO_WRITE
-         jsr   EnableAccelerator
+         +ENABLE_ACCEL
          lda   #$60
          sta   $813
          jsr   $800
@@ -20,8 +19,27 @@
 
 @good_vbl
          +DISABLE_ACCEL
+         lda   $fbb3
+         cmp   #$6
+         bne   @not_mac
+         lda   $fbc0
+         cmp   #$e0
+         bne   @not_mac
+         lda   $fbdd
+         cmp   #$02
+         bne   @not_mac
+         +READ_RAM2_WRITE_RAM2
+         +LOAD_FILE_AT flapple_mac, $b000
+         jsr   $b000
+         +READ_ROM_NO_WRITE
+
+@not_mac
          jmp   $2000
 
+flapple_mac
+         !byte 21
+         !text "PRELAUNCH/FLAPPLE.MAC"
+
 !if * > $1C0 {
   !error "code is too large, ends at ", *
 }
diff --git a/src/prelaunch/flapple.mac.a b/src/prelaunch/flapple.mac.a
new file mode 100644
index 000000000..a3fa851d7
--- /dev/null
+++ b/src/prelaunch/flapple.mac.a
@@ -0,0 +1,290 @@
+;license:MIT
+;(c) 2023 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/FLAPPLE.MAC",plain
+*=$b000
+
+         !source "src/constants.a"   ; no code in these
+         !source "src/macros.a"
+
+         lda   #$CD        ; disable palette switch
+         sta   $26C9
+         sta   $270F
+         sta   $2755
+         sta   $279B
+         sta   $2AAB
+         sta   $2B19
+
+         lda   #$6c        ; fix title screen
+         sta   $00
+         lda   #$30
+         sta   $01
+         ldx   #$16
+         ldy   #$21
+         lda   #$11
+         jsr   @swap_palette
+
+         lda   #$18
+         sta   $00
+         lda   #$36
+         sta   $01
+         ldx   #6
+         ldy   #$18
+         lda   #$11
+         jsr   @swap_palette
+
+         lda   #$38
+         sta   $00
+         lda   #$37
+         sta   $01
+         ldx   #6
+         ldy   #6
+         lda   #$22
+         jsr   @swap_palette
+
+         lda   #$80
+         sta   $00
+         lda   #$37
+         sta   $01
+         ldx   #6
+         ldy   #$13
+         lda   #$22
+         jsr   @swap_palette
+
+         lda   #$64
+         sta   $00
+         lda   #$38
+         sta   $01
+         ldx   #6
+         ldy   #3
+         lda   #$11
+         jsr   @swap_palette
+
+         lda   #$88
+         sta   $00
+         lda   #$38
+         sta   $01
+         ldx   #3
+         ldy   #3
+         lda   #$11
+         jsr   @swap_palette
+
+         lda   #$ae        ; fix high score
+         sta   $00
+         lda   #$38
+         sta   $01
+         ldx   #2
+         ldy   #$3
+         lda   #$11
+         jsr   @swap_palette
+
+         lda   #$d2        ; fix high score
+         sta   $00
+         lda   #$38
+         sta   $01
+         ldx   #2
+         ldy   #3
+         lda   #$11
+         jsr   @swap_palette
+
+         ldx   #$BD        ; fix pipe
+         ldy   #$3A
+         jsr   @swap_palette2
+
+         ldx   #$67        ; fix bird sprite
+         ldy   #$47
+         jsr   @swap_palette1
+
+         ldx   #$C1        ; fix bird sprite
+         ldy   #$47
+         jsr   @swap_palette1
+
+         ldx   #$1B        ; fix bird sprite
+         ldy   #$48
+         jsr   @swap_palette1
+
+         ldx   #$93        ; fix bird sprite
+         ldy   #$48
+         jsr   @swap_palette1
+
+         lda   #$55
+         sta   $3BFC
+         sta   $3D22
+         sta   $3DE7
+         sta   $3E4D
+         sta   $3E7F
+         sta   $40C4
+         sta   $41B6
+         sta   $4328
+         lda   #$E5
+         sta   $3C07
+         sta   $3C18
+         sta   $3D9F
+         sta   $3E8E
+         sta   $3EA3
+         sta   $4064
+         sta   $4196
+         sta   $41AB
+         sta   $4386
+         lda   #$5E
+         sta   $3C0D
+         sta   $3DA5
+         sta   $3E94
+         sta   $406A
+         sta   $419C
+         sta   $438C
+         lda   #$C5
+         sta   $3C1F
+         sta   $3C30
+         sta   $3DAC
+         sta   $3DBD
+         sta   $3EAE
+         sta   $3EC3
+         sta   $4075
+         sta   $408A
+         sta   $4167
+         sta   $417C
+         sta   $4357
+         sta   $436C
+         lda   #$5C
+         sta   $3C25
+         sta   $3C3B
+         sta   $3DB2
+         sta   $3DC8
+         sta   $3EB4
+         sta   $3ED2
+         sta   $407B
+         sta   $4099
+         sta   $416D
+         sta   $418B
+         sta   $435D
+         sta   $437B
+         lda   #$45
+         sta   $3C42
+         sta   $3DCF
+         sta   $3DE0
+         sta   $3EDD
+         sta   $40A4
+         sta   $40B9
+         sta   $4156
+         sta   $4337
+         sta   $434C
+         lda   #$54
+         sta   $3C48
+         sta   $3DD5
+         sta   $3EE3
+         sta   $40AA
+         sta   $415C
+         sta   $433D
+         lda   #$77
+         sta   $3C4F
+         sta   $3D27
+         sta   $3E67
+         sta   $3EEE
+         sta   $4147
+         sta   $49BF
+         sta   $4AEA
+         lda   #$EE
+         sta   $3D0D
+         sta   $3E52
+         lda   #$CC
+         sta   $3D12
+         sta   $3E5A
+         lda   #$44
+         sta   $3D1A
+         sta   $3E62
+
+         lda   #$27
+         sta   $2971
+         lda   #$4C
+         sta   $29B8
+         lda   #<@callback
+         sta   $29B9
+         lda   #>@callback
+         sta   $29BA
+
+         rts
+
+@callback
+         lda   #$3f
+         jmp   $fca8
+
+@swap_palette2
+         stx   $00
+         sty   $01
+         ldx   #1
+         ldy   #$0f
+         bne   +
+
+@swap_palette1
+         stx   $00
+         sty   $01
+         ldx   #4
+         ldy   #5
++        lda   #0
+
+@swap_palette
+         sta   @patch5 + 1
+         pha
+         and   #$f0
+         sta   @patch3 + 1
+         pla
+         and   #$0f
+         sta   @patch4 + 1
+         tya
+         sta   @patch1 + 1
+         asl
+         tay
+         dey
+         sty   @patch2 + 1
+--       ldy   #0
+-        lda   ($00), y
+@patch5
+         cmp   #$d1        ; SMC
+         beq   ++
+         and   #$f0
+@patch3
+         cmp   #$d1        ; SMC
+         beq   +
+         lda   ($00), y
+         lsr
+         lsr
+         lsr
+         lsr
+         eor   ($00), y
+         and   #$0f
+         eor   ($00), y
+         asl
++        and   #$f0
+         sta   $02
+         lda   ($00), y
+         and   #$0f
+@patch4
+         cmp   #$d1        ; SMC
+         beq   +
+         lda   ($00), y
+         lsr
+         lsr
+         lsr
+         lsr
+         lda   ($00), y
+         rol
+         and   #$0f
++        ora   $02
+         sta   $02
+         lda   $02
+         sta   ($00), y
+++       iny
+@patch1
+         cpy   #$d1        ; SMC
+         bcc   -
+         lda   $00
+@patch2
+         adc   #$d1        ; SMC
+         sta   $00
+         bcc   +
+         inc   $01
++        dex
+         bne   --
+         rts