diff --git a/res/DEMO/ALIEN.TYPHOON b/res/DEMO/ALIEN.TYPHOON
index 8c99ea46a..57eef1edb 100755
Binary files a/res/DEMO/ALIEN.TYPHOON and b/res/DEMO/ALIEN.TYPHOON differ
diff --git a/res/DEMO/AQUATRON b/res/DEMO/AQUATRON
index 26f4e9413..2d64aef0a 100755
Binary files a/res/DEMO/AQUATRON and b/res/DEMO/AQUATRON differ
diff --git a/res/DEMO/AQUATRON.1 b/res/DEMO/AQUATRON.1
deleted file mode 100755
index 4f4be6e5e..000000000
Binary files a/res/DEMO/AQUATRON.1 and /dev/null differ
diff --git a/res/DEMO/_FileInformation.txt b/res/DEMO/_FileInformation.txt
index 8dba63300..2a4849427 100644
--- a/res/DEMO/_FileInformation.txt
+++ b/res/DEMO/_FileInformation.txt
@@ -6,9 +6,8 @@ ALIEN.AMBUSH=Type(06),AuxType(4000),Access(C3)
 ALIEN.DOWNPOUR=Type(06),AuxType(0300),Access(C3)
 ALIEN.MUNCHIES=Type(06),AuxType(0300),Access(C3)
 ALIEN.MUNCH.1=Type(F1),AuxType(0000),Access(C3)
-ALIEN.TYPHOON=Type(06),AuxType(11FD),Access(C3)
-AQUATRON=Type(06),AuxType(0300),Access(C3)
-AQUATRON.1=Type(F1),AuxType(0000),Access(C3)
+ALIEN.TYPHOON=Type(06),AuxType(0300),Access(C3)
+AQUATRON=Type(06),AuxType(0120),Access(C3)
 AXIS.ASSASSIN=Type(06),AuxType(0300),Access(C3)
 AXIS.ASSASSIN.1=Type(F1),AuxType(0000),Access(C3)
 BATTLEZONE=Type(06),AuxType(0300),Access(C3)
diff --git a/src/demo/alien.typhoon.a b/src/demo/alien.typhoon.a
new file mode 100644
index 000000000..cfb498ce5
--- /dev/null
+++ b/src/demo/alien.typhoon.a
@@ -0,0 +1,57 @@
+;license:MIT
+;(c) 2021 by Frank M.
+
+!cpu 6502
+!to "res/DEMO/ALIEN.TYPHOON",plain
+*=$300
+
+         !source "src/constants.a"   ; no code in these
+         !source "src/macros.a"
+
+         +READ_RAM2_WRITE_RAM2
+         jsr   EnableAccelerator
+         +LOAD_FILE_AT alien_typhoon, $00 ; $4710
+
+         lda   #$60
+         sta   $472f
+         sta   $4739
+         jsr   $4710      ; decompress
+         ;jsr   $6000      ; run intro screen
+         jsr   $806       ; decompress
+
+         lda   #0
+         sta   $2067
+         lda   #1
+         sta   $206C      ; reset vector patch
+
+         lda   #$60
+         sta   $2075
+         jsr   $2001      ; unpack
+
+         lda   #$4C
+         sta   $9D58
+         sta   $8FD6
+         sta   $8FEF
+         sta   $92B1
+         lda   #0
+         sta   $9D58+1
+         sta   $8FD6+1
+         sta   $8FEF+1
+         sta   $92B1+1
+         lda   #1
+         sta   $9D58+2
+         sta   $8FD6+2
+         sta   $8FEF+2
+         sta   $92B1+2    ; set exits
+
+         jsr   DisableAccelerator
+         +READ_ROM_NO_WRITE
+         jmp   $8F98
+
+alien_typhoon
+         !byte 29
+         !text "X/ALIEN.TYPHOON/ALIEN.TYPHOON"
+
+!if * > $3F0 {
+  !error "code is too large, ends at ", *
+}
diff --git a/src/demo/aquatron.a b/src/demo/aquatron.a
new file mode 100644
index 000000000..c0e501472
--- /dev/null
+++ b/src/demo/aquatron.a
@@ -0,0 +1,49 @@
+;license:MIT
+;(c) 2021 by Frank M.
+
+!cpu 6502
+!to "res/DEMO/AQUATRON",plain
+*=$120
+
+         !source "src/constants.a"   ; no code in these
+         !source "src/macros.a"
+
+         +READ_RAM2_WRITE_RAM2
+         jsr   EnableAccelerator
+         +LOAD_FILE_AT aquatron, $00 ; $59C2
+         +READ_ROM_NO_WRITE
+
+         lda   #>(callback - 1)
+         sta   $5FC3
+         lda   #<(callback - 1)
+         sta   $5FC6
+         jmp   $59C2      ; decompress
+
+callback
+         lda   #$4C
+         sta   $7AE1
+         sta   $7D1D
+         lda   #0
+         sta   $7AE1+1
+         sta   $7D1D+1
+         lda   #1
+         sta   $7AE1+2
+         sta   $7D1D+2
+         lda   #$D0
+         sta   $7E11
+         sta   $7E38
+         sta   $7E43
+         sta   $7EA0
+
+         +READ_RAM2_WRITE_RAM2
+         jsr   DisableAccelerator
+         +READ_ROM_NO_WRITE
+         jmp   $400
+
+aquatron
+         !byte 19
+         !text "X/AQUATRON/AQUATRON"
+
+!if * > $1F0 {
+  !error "code is too large, ends at ", *
+}