diff --git a/res/DEMO/SPACE.QUARKS b/res/DEMO/SPACE.QUARKS
index 1a6e53561..abe2d39ef 100755
Binary files a/res/DEMO/SPACE.QUARKS and b/res/DEMO/SPACE.QUARKS differ
diff --git a/res/DEMO/SPACE.QUARKS.1 b/res/DEMO/SPACE.QUARKS.1
deleted file mode 100755
index bef8dd060..000000000
Binary files a/res/DEMO/SPACE.QUARKS.1 and /dev/null differ
diff --git a/res/DEMO/_FileInformation.txt b/res/DEMO/_FileInformation.txt
index f42ab0a41..186e402dd 100644
--- a/res/DEMO/_FileInformation.txt
+++ b/res/DEMO/_FileInformation.txt
@@ -152,8 +152,7 @@ SNEAKERS=Type(06),AuxType(0800),Access(C3)
 SNEAKERS.1=Type(F1),AuxType(0000),Access(C3)
 SPACE.EGGS=Type(06),AuxType(0300),Access(C3)
 SPACE.EGGS.1=Type(F1),AuxType(0000),Access(C3)
-SPACE.QUARKS=Type(06),AuxType(0300),Access(C3)
-SPACE.QUARKS.1=Type(F1),AuxType(0000),Access(C3)
+SPACE.QUARKS=Type(06),AuxType(B000),Access(C3)
 SPARE.CHANGE=Type(06),AuxType(2700),Access(C3)
 SPARE.CHANGE.A=Type(F1),AuxType(8E00),Access(C3)
 SPARE.CHANGE.G=Type(F1),AuxType(9600),Access(C3)
diff --git a/res/demosrc/space.quarks.a b/res/demosrc/space.quarks.a
new file mode 100644
index 000000000..8bfeeaca1
--- /dev/null
+++ b/res/demosrc/space.quarks.a
@@ -0,0 +1,46 @@
+;license:MIT
+;(c) 2021 by qkumba
+
+!cpu 6502
+!to "res/DEMO/SPACE.QUARKS",plain
+*=$B000
+
+    !source "src/prelaunch/common.a"
+
+         +READ_RAM2_WRITE_RAM2
+         jsr   EnableAccelerator
+         +LOAD_FILE_AT space_quarks, $00
+         lda   #$4C
+         sta   $3EC9
+         jsr   $3E65      ; decompress/set reset vector
+         +RESET_VECTOR $100
+         lda   #$EA
+         sta   $1C38
+         sta   $1C39
+         sta   $1C3A
+         sta   $0D6F
+         sta   $0D70
+         sta   $0D71
+         lda   #$4C
+         sta   $1C3F
+         sta   $0D76
+         ldx   #0
+         stx   $1C40
+         stx   $0D77
+         inx
+         stx   $1C41
+         stx   $0D78
+         ldx   #16
+-        lda   patch, x
+         sta   $72BD, x
+         dex
+         bpl   -
+         jsr   DisableAccelerator
+         +READ_ROM_NO_WRITE
+         jmp   $20A
+
+space_quarks
+         !byte 27
+         !text "X/SPACE.QUARKS/SPACE.QUARKS"
+
+patch    !byte $F0,$08,$AD,$00,$C0,$10,$0D,$4C,$00,$01,$CE,$05,$03,$F0,$F8,$68,$68