diff --git a/res/DEMO/AGENT.U.S.A b/res/DEMO/AGENT.U.S.A
index f66ecd018..87132b3f1 100644
Binary files a/res/DEMO/AGENT.U.S.A and b/res/DEMO/AGENT.U.S.A differ
diff --git a/res/DEMO/AGENT.USA.1 b/res/DEMO/AGENT.USA.1
deleted file mode 100755
index 649bca62f..000000000
Binary files a/res/DEMO/AGENT.USA.1 and /dev/null differ
diff --git a/res/DEMO/FALCONS b/res/DEMO/FALCONS
index dc2244f9f..4d892571e 100755
Binary files a/res/DEMO/FALCONS and b/res/DEMO/FALCONS differ
diff --git a/res/DEMO/FALCONS.1 b/res/DEMO/FALCONS.1
deleted file mode 100755
index e433f89f8..000000000
Binary files a/res/DEMO/FALCONS.1 and /dev/null differ
diff --git a/res/DEMO/STARGATE b/res/DEMO/STARGATE
index d0b0169c6..357ec8179 100755
Binary files a/res/DEMO/STARGATE and b/res/DEMO/STARGATE differ
diff --git a/res/DEMO/STARGATE.1 b/res/DEMO/STARGATE.1
deleted file mode 100755
index d68047dd7..000000000
Binary files a/res/DEMO/STARGATE.1 and /dev/null differ
diff --git a/res/DEMO/_FileInformation.txt b/res/DEMO/_FileInformation.txt
index 263235419..4890b0b6b 100644
--- a/res/DEMO/_FileInformation.txt
+++ b/res/DEMO/_FileInformation.txt
@@ -1,7 +1,6 @@
 # This file is maintained by hand
 
 AGENT.U.S.A=Type(06),AuxType(0300),Access(C3)
-AGENT.USA.1=Type(F1),AuxType(0000),Access(C3)
 ALIEN.AMBUSH=Type(06),AuxType(4000),Access(C3)
 ALIEN.DOWNPOUR=Type(06),AuxType(0300),Access(C3)
 ALIEN.MUNCHIES=Type(06),AuxType(0300),Access(C3)
@@ -51,8 +50,7 @@ DINO.EGGS=Type(06),AuxType(0300),Access(C3)
 DINO.EGGS.1=Type(F1),AuxType(0000),Access(C3)
 DUNG.BEETLES=Type(06),AuxType(0300),Access(C3)
 DUNG.BEETLES.1=Type(F1),AuxType(0000),Access(C3)
-FALCONS=Type(06),AuxType(0300),Access(C3)
-FALCONS.1=Type(F1),AuxType(0000),Access(C3)
+FALCONS=Type(06),AuxType(B000),Access(C3)
 FIREBIRD=Type(06),AuxType(0300),Access(C3)
 FIREBIRD.1=Type(F1),AuxType(0000),Access(C3)
 FIREBUG=Type(06),AuxType(0200),Access(C3)
@@ -165,8 +163,7 @@ SPIDER.RAID.1=Type(F1),AuxType(0000),Access(C3)
 SPY.HUNTER=Type(06),AuxType(0B87),Access(C3)
 SD=Type(06),AuxType(3FF1),Access(C3)
 STAR.BLAZER=Type(06),AuxType(0300),Access(C3)
-STARGATE=Type(06),AuxType(0300),Access(C3)
-STARGATE.1=Type(F1),AuxType(0000),Access(C3)
+STARGATE=Type(06),AuxType(0106),Access(C3)
 STELLAR.7=Type(06),AuxType(0300),Access(C3)
 STELLAR.7.1=Type(F1),AuxType(0000),Access(C3)
 THUNDERBOMBS=Type(06),AuxType(2000),Access(C3)
diff --git a/src/demo/agent.u.s.a.a b/src/demo/agent.u.s.a.a
new file mode 100644
index 000000000..37f04a632
--- /dev/null
+++ b/src/demo/agent.u.s.a.a
@@ -0,0 +1,59 @@
+;license:MIT
+;(c) 2021 by Frank M.
+
+!cpu 6502
+!to "res/DEMO/AGENT.U.S.A",plain
+*=$300
+
+         !source "src/constants.a"   ; no code in these
+         !source "src/macros.a"
+
+         +READ_RAM2_WRITE_RAM2
+         jsr   EnableAccelerator
+         +LOAD_FILE_AT title, $00
+         +READ_ROM_NO_WRITE
+
+         lda   #$60
+         sta   $36D3
+         jsr   $366D      ; decompress
+
+         ldx   #5
+-        lda   $100,x
+         sta   reset,x
+         dex
+         bpl   -
+         sec
+         rol   $3F3       ; point to $300 instead
+         jsr   $FB6F      ; reset vector checksum (bank ROM in)
+
+         lda   #$EA
+         sta   $15DD
+         sta   $15DD+1
+         sta   $15DD+2    ; disable button press on main menu
+
+         lda   #$4C
+         sta   $0A06
+         sta   $1605
+         lda   #0
+         sta   $0A06+1
+         sta   $1605+1
+         lda   #1
+         sta   $0A06+2
+         sta   $1605+2    ; set exits
+
+         lda   #$D0
+         sta   $AC64      ; disable sound
+
+         +DISABLE_ACCEL
+
+         jmp   $837
+
+reset    !byte $00,$00,$00,$00,$00,$00
+
+title    !byte x_e-x_b
+x_b      !text "X/AGENT.U.S.A/AGENT.U.S.A"
+x_e
+
+!if * > $3F0 {
+  !error "code is too large, ends at ", *
+}
diff --git a/src/demo/falcons.a b/src/demo/falcons.a
new file mode 100644
index 000000000..17817d82c
--- /dev/null
+++ b/src/demo/falcons.a
@@ -0,0 +1,42 @@
+;license:MIT
+;(c) 2021 by Frank M.
+
+!cpu 6502
+!to "res/DEMO/FALCONS",plain
+*=$B000
+
+         !source "src/constants.a"   ; no code in these
+         !source "src/macros.a"
+
+         +READ_RAM2_WRITE_RAM2
+         jsr   EnableAccelerator
+         +LOAD_FILE_AT title, $00
+
+         lda   #$60
+         sta   $3f0b
+         jsr   $3eba      ; decompress
+
+         lda   #$2C
+         sta   $602A      ; skip input selection
+
+         lda   #$4C
+         sta   $9FF7
+         sta   $9FDC
+         lda   #0
+         sta   $9FF7+1
+         sta   $9FDC+1
+         lda   #1
+         sta   $9FF7+2
+         sta   $9FDC+2    ; set exits
+
+         +DISABLE_ACCEL
+
+         jmp   $6000
+
+title    !byte x_e-x_b
+x_b      !text "X/FALCONS/FALCONS"
+x_e
+
+!if * > $BFFF {
+  !error "code is too large, ends at ", *
+}
diff --git a/src/demo/stargate.a b/src/demo/stargate.a
new file mode 100644
index 000000000..d907af6be
--- /dev/null
+++ b/src/demo/stargate.a
@@ -0,0 +1,67 @@
+;license:MIT
+;(c) 2021 by Frank M.
+
+!cpu 6502
+!to "res/DEMO/STARGATE",plain
+*=$106
+
+         !source "src/constants.a"   ; no code in these
+         !source "src/macros.a"
+
+         +READ_RAM2_WRITE_RAM2
+         jsr   EnableAccelerator
+         +LOAD_FILE_AT title, $800
+
+         lda   #$60
+         sta   $4697
+         jsr   $800       ; decompress
+
+         lda   #$60
+         sta   $9A03
+         jsr   $9A00      ; decompress2
+
+         lda   #$10
+         sta   $0933
+         lda   #$1E
+         sta   $0933+1
+         lda   #$4C
+         sta   $0933+2
+         sta   $0905
+         sta   $51C7
+         sta   $51D2
+         lda   #0
+         sta   $0933+3
+         sta   $0905+1
+         sta   $51C7+1
+         sta   $51D2+1
+         sta   $47F2
+         lda   #1
+         sta   $0933+4
+         sta   $0905+2
+         sta   $51C7+2
+         sta   $51D2+2    ; set exits
+         sta   $47F2+1
+         lda   #$A4
+         sta   $47F4+2    ; reset vector (moved to $3F2)
+
+         lda   #$D0
+         sta   $153B
+         sta   $5F0E
+         sta   $50B8
+         sta   $1DF7
+         sta   $1151
+         sta   $16E0
+         sta   $166B
+         sta   $167A      ; disable sound
+
+         +DISABLE_ACCEL
+
+         jmp   $5000
+
+title    !byte x_e-x_b
+x_b      !text "X/STARGATE/STARGATE"
+x_e
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}